Category - Home Experiments

Air Pressure Experiments (Science Experiments For Kids)

This post is a compilation of air pressure experiments for kids.

Air has weight which exerts force on everything at all times. The force exerted by air over a given area is called atmospheric pressure. It is the weight of atmosphere pressing down on earth’s surface. It is measured using a barometer. Air pressure decreases with increasing altitude.

This is because layers of air reduce with increase in height form the ground. You will notice your oxygen demand increases at high altitude. You may also experience discomfort when in an airplane. This is caused by changes in air pressure.

Air pressure can change when an object accelerates or wind blows. These changes provide cool science experiments.

These are various methods of demonstrating air pressure for kids.   Read More

How To Make Invisible Ink (3 Different Methods).

How do you make invisible ink, and most importantly, how does invisible ink work? This cool science experiment would show you how to make invisible ink using three different methods.

The three methods are as follows:

  • Making Invisible Ink using Lemon Juice.
  • Making Invisible Ink Using Baking Soda
  • Making Invisible Ink using Corn starch.


For the purpose of this experiment, you would need the following materials.

  1. Lemon Fruit
  2. A small bowl
  3. A Knife
  4. White Paper
  5. Cotton Bud
  6. Light Bulb


(a). Cut the lemon fruit into half and squeeze the juice from the fruit into a bowl.

(b). Mix the lemon juice with small quantity of water. Preferably in equal proportion with the juice.

(c). Dip the cotton bud into the lemon juice and use the cotton bud to write your secret message on the white paper

(d). Allow the white paper to dry.

(e). After few minutes, bring the paper close to the light bulb, leave it exposed to the heat from the bulb for some minutes.


The paper would usually look blank as if nothing is written on it, until you expose it to some form of it. Then the message would gradually begin to appear in brown color.


Lemon juice when oxidized can easily turn brown. This is exactly what happens when you expose the white paper to heat from light bulb.


This is another method of making an invisible ink for writing on a paper.


  1. A bowl
  2. Baking Soda
  3. Water
  4. Cotton bud
  5. White Paper
  6. Light bulb


(a). Mix equal amount of baking soda and water in the bowl

(b). Use the cotton bud to write your secret message on the white paper

(c). Allow the paper to dry appropriately.

(d). When you’re ready to read your message, expose paper to heat from light bulb.


Materials Needed:

  1. Small pot or pan
  2. Corn starch
  3. Water
  4. Iodine
  5. White Paper
  6. Cotton bud


(a). Mix A table spoon of Water and Starch, then boil to dissolve the starch completely.

(b). Use the cotton bud to write on the white paper, using the cotton bud as pen

(c). Allow the starch ink to dry on the paper.

(d). Make another solution of iodine and water (Mixing a table spoon of each together)

(e). Use another cotton bud to brush the iodine solution over the paper to reveal your secret message.


Cool? Yeah! Now you see that magic pen is not only in harry potter. You can make yours too!

How To Make Glowing Water

This article would show you how to make glowing water and various fun stuffs you can do with glowing water.

There are four (4) ways one making a glowing light, of the four methods; three of them would render the water undrinkable.

How To Make Glowing Water Using Highlighter:

It’s important to take note that glowing water made using this method is not drinkable and should be disposed when you’re done having fun with it.

Materials Needed:

  • Highlighter
  • Scissors (You can use a pliers or a knife as well)
  • A glass jar filled with water. (The higher the volume of water, the lower the luminescence)
  • UV light (Also called Black light)

Read More

How To Make a Tornado In a Bottle.

Want to learn how to make a tornado in a bottle? Follow this guide step by step and you would make your own tornado.

Materials Needed For Making Bottle Tornado.

A bottle

Dish Soap

Glitters (Optional)



  1. Fill the bottle with water (About halfway full)
  2. Add about two drops of dish soap
  3. Add some glitters
  4. Cover the bottle to with the bottle cap.
  5. Turn the bottle over so that the top faces down.
  6. Spin the bottle in a loose circular motion

After spinning for few seconds you should begin to see water whirling in the center of the bottle; giving rise to a mini volcano in the bottle. Although the volcano you just made isn’t as huge as the ones you see on weather stations. The aim of this fun science experiment is to show kids what a tornado looks like and hopefully teach kids some science lessons. So let’s get down to the science lesson part.

Read More

Egg in vinegar experiment

Introduction To Egg and Vinegar Experiment:

The egg in vinegar experiment is a classic experiment used in removing the egg shell from an egg. I once wrote a post that compiled various egg experiments for kids, you might want to check it out and see all sort of things you can do with an egg.

Most of the egg experiment revolves around the use of vinegar, talk of the egg osmosis lab, the bouncy egg and glowing egg; all of them requires the use of vinegar at one point of the other.

I have decided to make a post about the egg in vinegar experiment, what’s so special about vinegar anyway? and how does it react with egg to produce it’s result. Why does vinegar have such effect on egg?

Read More

How To Separate Egg Whites

How to separate egg whites the proper way.

If for some reasons, you’d like to separate egg whites from the yolk, here is the best method of doing it without getting your hand messy.

how to separate egg whites

How To Separate Egg Whites Using Plastic Bottle.

  1. Crack the egg gently into a plate. Make sure the yolk is intact.
  2. Get an empty plastic bottle.
  3. Squeeze the empty bottle so as to push away the air inside the bottle.
  4. Place the mouth of the empty bottle on the egg yolk inside the plate
  5. Release the bottle in an attempt to allow air to flow into the bottle.

That’s the simplest way of separating egg whites from the yolk.

If for some reasons you don’t want to use the method described above; let let’s explore three other methods, and you can choose the most appropriate one for yourself.

Check out more egg and bottle trick

Separate Egg Whites Using Your Hand.

This method is a bit old school and messy, but it would get you the desired result. Since you choose not to use the bottle method; let’s explore the method of separating egg whites using you hand.

  1. Get two plates ready. One for the egg whites and the other for the yolk.
  2. Wash you two hands thoroughly.
  3. Fold one of your palm to form a sieve.
  4. Once the egg is cracked, pour the content (both yolk and whites) on your folded palm.
  5. Gently allow the passage of the egg white through the space between your fingers into one of the bowl.
  6. Once the egg whites is full separated, pour the yolk into the second bowl.

Messy huh?

Of course there are other methods of separating egg whites from the yolk; another method is the use of egg separator.

How To Separate Egg Whites Using Egg Separator.

This method is close to perfect; I would have called it perfect; except that it would cost you about $2 to get an egg separator on amazon. Other than that; the method is as good as the bottle method.

  1. Crack the egg into the egg separator
  2. Shake the separator until the egg whites passes through the sieve into the plate placed beneath.

How to Separate Egg Whites Using Other Kitchen Tools

If you choose not to use any of the methods suggested above; then you can use any other kitchen tools.

The most important feature of the tools is that; it must be able to hold the egg yolk while the albumen; egg whites passes through it.

Example of such tool is the slotted spoon and of course the common funnels that we use in the kitchen.

The funnel is another good option; however you should be careful while shaking it to preventing mixing the yolk with the egg whites which would render the purpose of the separation meaningless.

Others Methods Of Separating Egg Whites.

There is another method that is pretty common; provided you’re separating the egg whites of a single egg and you’re in a hurry and don’t have the luxury of time to get the required tools for the separation.

If you find yourself in such situation; here is a quick way (not the best though) of separating egg whites from it’s yolk.

  1. Mark the egg along the middle; usually this is the region with the broadest diameter. It’s where the egg looks really big.
  2. Make a smart crack along that line and carefully remove one-half of the shell while you pour it’s content into the other shell. Watch out for the yolk!
  3. Now, carefully pour the egg whites from one-half shell to the other,

This method is not the fastest; but it might come handy in case you can lay your hands on the right tools.

Science Of How To Separate Egg Whites

It’s gradually becoming an habit for me; I won’t share a trick/experiment/tips with you without talking about the science behind; after all that’s where the real lesson lies.

Eggs, just like every other item on planet earth; gravity would always have it’s effect on it.

In an egg there are two major contents; we have the egg yolk and the egg whites. But there is a slight different between the two.

The egg white is more liquid in nature compared to the egg yolk which is a little bit solidify (a little bit!).

What this means in the real sense of it is that; the molecule that makes up the egg whites have more freedom (they can move freely and faster) compared to those of the egg yolk (which have lesser speed because they’re closely binded together; being semi solid)

So when you try to pour egg white along the force of gravity; they move faster than egg yolk because of the free movement of the molecules that constitute them.

Check out how to test if an egg is good or bad.

How To Get an Egg In a Bottle

How to get an egg in a bottle?

Seems impossible right? It’s possible! And this science experiment would show you how to get an egg in a bottle without breaking the egg or the bottle.


This is obvious but I would still state it anyway. The aim of the experiment is to get a hard boiled peeled egg into a bottle.

While doing this; the experiment also aims to demonstrate the relationship between temperature and pressure.

Materials Needed:

  • Hard boiled egg (Make sure it is peeled properly)
  • A Glass bottle (Make sure the mouth is big enough to partially accommodate the base of the egg.)
  • Matches
  • Sheet of Paper (Cut it into sizes small enough to enter the bottle)

how to get an egg in a bottle

How to get an egg in a bottle: Procedure

  1. Light up the sheet of paper and carefully (but quickly) drop it inside the glass bottle.
  2. Carefully place the hard boiled egg on the mouth of the glass bottle.
  3. Allow the burning sheet of paper to die off itself.
  4. Watch as the egg squeeze it’s way into the bottle.

That wasn’t hard was it? Now let’s look at the science behind the experiment.

Egg in a bottle explanation.

How did the egg on the bottle end up inside the bottle? What’s the science behind the experiment?

Let’s analyze the experiment scientifically and see for ourselves.

Why glass bottle?

Glass bottle can absorb heat and not burn out compared to other materials. So it’s important that you use a glass bottle.

The bottle would usually contain some air when you dropped the burning sheet of paper into it. This air molecule would eventually gain more kinetic energy and as a result they would be able to move more freely.

The egg placed on the bottle mouth would allow small fraction of the heated air to escape from the bottle. The escape of some of the air molecule will result into lesser air in the bottle right?

So when the burning sheet of paper dies off… There would be a need for air to enter the bottle and fill up the partial vacuum inside the bottle.

For this to occur, the incoming air from the atmosphere, would exert huge amount of pressure on the egg blocking it’s passage into the bottle and as a result; it would forcefully push the egg inside the bottle.

That’s the science of how to get an egg into a bottle…. 😉

Getting out the egg in the bottle:

Now that we’ve completed the experiment; it’s time to get our precious egg out of the bottle. How do we do that without breaking the bottle?

This can be done using the same principle that we used in getting the egg into the bottle initially.

All you have to do in increase the volume of atmospheric air inside the bottle by placing your mouth over the top of the bottle and forcefully blow some air into the bottle.

You can now carefully turn the bottle upside down to remove the egg gently.

Other Methods:

Since the major aim of the experiment is to increase the kinetic energy of the air particles inside the bottle by heating it up so that they can escape; then there are other means of achieving that without the use of sheet of paper and lighter.

You can also get an egg in a bottle using the hot water method, and here is how it’s done.

  1. Get yourself a glass bottle and boil a clean water to 100 Degree celcius
  2. Carefully pour the water into the glass bottle; about half way through
  3. The place the hard boiled egg (with the shell removed) on the bottle top
  4. Watch as the egg squeezes it’s way into the bottle.

You should be careful when dealing with hot water; adult supervision is very important here.

When you’re about to remove the egg, the first step is to pour out the hot water before blowing some air into the bottle.

Remember you’re dealing with hot water and it WOULD hurt your skin if it touches it.

Video: How to get an Egg In A Bottle Using Hot Water.



Were you able to pull the experiment off? Did you face any challenges while completing the experiment? If you’ve got other interest science experiment as regards egg, air and pressure, feel free to make use of the comment box.

Just before you move on; check out the cool egg float test experiment.

Egg Science Experiments: Bouncy Egg, Floating Egg and Others.

Egg science experiments:

Science is fun!  Here is a compilation of science experiments with eggs. All experiments listed in this article are fun to do; and they all have one thing in common; eggs! The experiments are designed to show you various aspect of science using the common kitchen egg as a specimen.

Naked and Bouncy Egg Experiment

What happens when you put an egg in vinegar? Read More

Egg Float Test: Do Good Eggs Float or Sink?

Why do most people conduct egg float test? Often it’s to determine if an egg has gone bad or not. The general understanding is that good eggs sinks while bad eggs would float in water.

How true is this theory? Is it true that eggs that float are the bad eggs while the ones that sink are the good eggs? I would analyze all of the egg float test theories in this post and hopefully your questions would be answered by the time you’re done reading. Read More

Science Experiments For Kids (EASY, QUICK, FUN & COOL)

Checking The Basis

Conducting science experiments for kids is as important as investing billions of dollars into graduate school research…

If a cultural practice would not fade off; then the younger generation must have a clear understanding of the norm of that culture. The same rule applies to science.

Science experiment for kids is very essential if we intend to keep the pace of innovations and discovery at its peak. Currently, we are not doing a good job in that department, and as a result we have a lot of kids aspiring to be rock stars…

While I have nothing against such aspiration, I think it is important to expose our kids to sciences as much as we expose them to the world of entertainment and other socially dominant activities.

Only if kids get to learn about the beauty of science at  very early stage of life; maybe it would influence their career choice when the time comes.

We use cell phones and other amazing product of science research everyday, how about showing the kids how it is done and hopefully they can make something better than what we have now in the nearest future.

If you agree with me on this, if you think science experiments for kids is something that shouldn’t be taken lightly, then take a stand today and educate a kid in your vicinity about science.

The main aim of this article is to discuss the nitty-gritty of science as it applies to kids, the importance of science education to kids and how to show children the beauty of science through various science experiments designed specifically for kids.

Let’s start from the basis…

What is Science?

Science is the concerted human effort to understand, or to understand better, the history of the natural world and how the natural world works, with observable physical evidence as the basis of that understanding. It is done through observation of natural phenomena, and/or through experimentation that tries to simulate natural processes under controlled conditions.

As defined here.

The understanding of the true definition of science shows that the field revolves around us, we live in science, as a matter of fact everything we do is all about science…

If our live revolves around a particular field, it’s a pointer that we need to do our best to make sure coming generation learn about this field… Check the referenced link to see more reason as to why you should study science.

…. the observation of natural phenomena through experimentation…. is what really caught my attention.

It’s such a shame that we teach science to kids with little effort in showing what science really to them. The experiment part is either inadequate of missing.

This page would contain series of information about various science experiments for kids. The aim is to gear kids interest towards science and in all bring science to their level of understanding.

Who this guide is meant for?

The guide on science experiments for kids is meant for three categories of people; the science teacher in elementary, middle and high school, parents and kids themselves.

In some cases, the instruction would be written specifically towards the teacher or parent, while in others; especially on specific pages about science experiments, the instruction would be written for kids.

Take for instance, the introductory part is written as a challenge and call to action towards parent and teachers.

How to use this guide?

It’s pretty straight forward. Just follow the instruction specifically and see science come to life in your school, your backyard or wherever you choose to practice the experiments shared on this websites.

I have added internal links to make navigation through pages very easy.

Guideline For Science Experiments For Kids.


For Parents and Teachers:

Agreed, Science is a very interesting subject of study, but it’s very easy to get things wrong when it comes to science experiments. This makes it very important to take note of the following precautions and guidelines when conducting science experiments for kids.

  •  Safety First:  Your safety and that of the kids is very important. Although a larger percentage of the experiments discussed on this website does not pose any significant threat to personal safety.

Nevertheless, it’s important to make children understand how “ritualistic” the safety precautions must be attended to when conducting any experiment.

The only way to make them understand this is by telling them the precaution that should be taken before any experiment. No matter how “insignificant” it may seems to you.

Take for instance, in my high school days; It was my first time at the acid lab and we were working with diluted hydrochloric acid during a titration chemistry experiment.

While listing out the safety precaution; he warned us to refrain from pouring water into acid, but we should rather pour acid into water. As simple as the instruction sounds; it saved my life during a biochemistry class experiment as an undergraduate.

The morale of the story is that; basic instruction goes a long way; either now or later in the future.

Tell kids the importance of wearing a lab coat when they’re in the laboratory. Tell them the importance of labeling their experimental apparatus.

  • Language and Scientific Expression:  The aim of conducting science experiments for kids is to show that that science is not a boring subject as assumed by most people. This is why I have compiled a long list of fun, cool and easy experiments for kids.

It is equally important that you demonstrate to them in a fun, easy, simple and cool way. Not in a super professional scientific way. Telling a five (5) years old about Archimedes principle would further complicate the issue for them.

How about explaining the flotation principle using simple terms and something they can relate to, and give them the opportunity of figuring out Archimedes principle when they’re ready for it?

If the teacher, parent or instructor fails to present the experiments discussed on this blog in a fun and easy way; then the overall aim of conducting science experiments for kids would be forfeited.

  • Don’t Show Them; Let Them Do It: 

    “Tell me and I forget, teach me and I may remember, involve me and I learn.” ― Benjamin Franklin. Really, there is no better way to put it than using Benjamin Franklin’s quote.

Let the kids do the actual experiment. You can have two setup; one for yourself and one for the kids; depending on the number of kids; you can divide them into smaller groups for proper demonstration.

When they do it themselves and it really worked; just like the way you say it will, then you’ve instill a greater sense of curiosity in them. And as far as science is concerned; curiosity is all that is needed to be the best amidst one’s peers.

For kids:

Science is beautiful, but if not done properly, it can equally be harmful. This makes it very important for you to follow the guidelines strictly.

  • Don’t ever conduct any experiment that has to do with the use of acid without direct adult supervision. You wouldn’t find such experiment on the website anyway.
  • Sometimes, I like to play pranks on my friends when I was a little boy, I still do till today. It’s a good thing; but don’t try to play pranks on them using dangerous sciences experiment. It might simply get out of control and the consequences may be higher than what both parties can bear.
  • Instruction matters a lot. Don’t commence any experiment if you don’t understand the instruction provided. If you find it difficult to understand the instruction; seek the help of an adult. You don’t get scolded for asking intelligent questions; on the contrary, you get applauded for being inquisitive.

Planning Science Experiments For Kids

Be it for a science fair project, or a birthday science experiment event to excite the kids. Here are basic things that should be done when planning science experiments for kids.

  • Choose a Science Experiment: There are varieties of science experiments for kids. You can check our archive and choose the ones that you find suitable for the proposed event.

Some factors to consider when choosing your experiment includes but not limited to; finance, age range of the children, availability of space, time allocation and availability of materials.

  • Pre-Show Experiment: Make sure you understand the basis of the experiment yourself, and practice the experiment once or twice before the real showcase to the kids.

We both know science is a tricky subject, and it might cause you lots of trouble if you don’t get the procedure right. In light of this, you want to make sure everything is in the right order before bringing it out to the kids.

You don’t want to be caught sweating before then do you?

  • Lessons: Create a series of questions to test the knowledge of the kids after each experiment. You can ask them questions that is closely related to the what you’ve just demonstrated. That way, it won’t be all about fun alone; but they would also learn from each experiment as well.

Now that we’ve covered the basics; it’s time to get on to the fun stuff.

Compilation of Science Experiments For Kids

For kids, science might be a very boring subject; the only way to make it interesting is by showing them various experiments that would make them curious about the process involved.

By so doing, science would not just be another boring thing that kids have to learn, but rather, they would enjoy every bit of it and hopefully grow up to become the next Einstein or somebody better.

For most part in high school, I hated physics classes, simple because I don’t understand the basis of what I was learning. However, reverse is the case for my biology classes. I simply enjoyed every bit of it, and this explains why I ended up studying biomedical sciences in the university.

A larger percentage of the experiments discussed in this article would expose kids to basic principle of science, however in a way most kids would consider cool. The idea is to teach while having fun. You would agree with me that this method of teaching would ensure the kids get the lesson and also recall them several years late.

I have created several categories for each and I would explore each category one after the other and hopefully, you would find an experiment of your taste before you exhaust the list.

Simple Science Experiment

The experiments listed in this category are simple, and can be completed within 10 to 15 minutes. You don’t need to be in a standard laboratory and household items can be used in carrying out the experiments.

I have carefully selected them such that, kids are not exposed to any hazard while carrying out the experiment. This means, a larger percentage of the experiment listed under the simple science experiment category can be done by kids within the age range 4 (four) and above.

Enjoy the list!

  1. Making Egg Float

AIM: The aim of this experiment is to show kids the principle behind density. Telling them density is mass/volume is basically boring. This experiment is a better way to teach them that.

MATERIALS NEEDED: Tall Drinking cup (Maybe plastic or glass), table salt, water, an eggs (un-boiled).


(a). Pour clean drinkable water into the cup, half way filled.

(b). Add 5 or 6 teaspoon of salt in the cup and stir until the salt dissolves completely.

(c). Allow the water to settle, then CAREFULLY pour clean water to fill up the cup

(d). carefully, place an egg in the cup.

OBSERVATION: If everything is done properly, the egg would float in between the layer of the water in the glass cup.

THE SCIENCE: Adding salt to the water increased the density of the water, and as such it becomes “heavier” than the weight of the egg. This explains why the egg did not sink when it got to the area of the salt water.


  1. Water Bending Experiment

AIM: The aim of this experiment is to show kids the principle behind static electricity. How positive electron and negative electron interact with one another.

MATERIALS NEEDED: A dry plastic comb, Indoor running tap (faucet), The hair on your head.


(a). Turn on the tap and keep the water running.

(b). Reduce the flow of water to the smallest volume, so that you have thin stream of water flowing from the tap.

(c). Use the dry plastic comb on your hair. Comb through your hair for at least a minute.

(d). Carefully bring the comb close to the thin stream of water running from the tap. Make sure the comb is close enough but not touching the water.

OBSERVATION: If everything is done properly, the thing stream of water should bend towards the direction of the comb.

THE SCIENCE: Brushing the comb through your hair ultimately transferred negative electron to the comb. The positive electron in the water is automatically attracted to the negative electron on the comb; hence the “bending” of the water towards the comb.


  1. Water Moving Experiment

AIM: The aim of this experiment is to show kids what capillary action means, and how it is beneficial to plants growth.

MATERIALS NEEDED: Three glass bottles (preferable with narrow mouth opening), Food coloring (two primary colors; yellow and blue) and two paper towels.


(a). Place the three glass bottle side by side. Very close to one another.

(b). Fill the first glass bottle with water, leave the second bottle empty, and fill the third bottle with water as well.

(c). Add the food coloring (blue) to the first bottle. Stir appropriately

(d). Add food coloring (yellow) to the third bottle. Stir appropriately.

(e). Carefully fold a paper towel in two folds or three and insert inside the first bottle, such that one end of the paper towel is inside the colored water, and the other end is placed inside the empty middle bottle.

(f). Repeat the above procedure for the third bottle.

(e). Leave the setup for an hour or more.

OBSERVATION: If done properly, the water from both bottle should have migrated into the bottle in the middle, and it should change color to green.

THE SCIENCE: Capillary action is the science behind this experiment. It is responsible for the movement of water from the water bed down the soil to the leaves and other part of plants. The same mechanism is responsible for movement of nutrient to the root of the plant.

The change in color is a result of mixing yellow and blue together, which would always give green color. You can play around by changing color as well.


  1. Floating Paper Clip

AIMS: The aim of this simple science experiment is to show kids the real life meaning of surface tension.

MATERIALS NEEDED: A paper clip, tissue paper, small bowl filled with water, A pen or any lightweight pen-like object pencil).


(a). Tear some piece of tissue paper, make sure it’s big enough to accommodate about two paper clips.

(b). Place the tissue paper on the surface of the water gently.

(c). Carefully place the paper clip on the tissue paper

(d). Use the pen to push the tissue paper down the water. (Be careful not to tamper with the paper clip while doing this. Gently)

OBSERVATION: All things being equal, the paper clip should float on the water surface without sinking to the bottom. Taking note that the paper clip would normally sink in water. Try doing the same experiment without tissue paper.

THE SCIENCE: Surface tension is an invisible force that holds the topmost particles of an object together. In this case, the water particles are held together by some invisible force.

  1. Colored Water Layers

AIM: This is another density science experiment. It would show kids the difference in density between four different types of colored water.

MATERIALS NEEDED: Five glasses of water, four different food coloring, lots of sugar or salt, warm water.


(a). Fill four of the glasses with warm water. (You can use cold water as well, but warm is better to quickly dissolve the sugar/salt)

(b). Add food coloring of different color to each of the cup. A color for each cup.

(c). Stir properly to ensure the color is evenly distributed.

(d). Add a teaspoon of sugar to the first cup. Repeat the procedure for the remaining cups, while doubling the number of sugar teaspoon.

(e). Stir the content of each cup to make sure the sugar or salt is completely dissolved.

(f). Starting with the cup that has the highest amount of sugar, in that order, pour small fraction of each cup in the fifth empty cup. Do this as gently as you can.

OBSERVATION: With a little luck, and all things being equal, the water should have four different layers based on the difference in the density of the water with varying amount of impurity (sugar).

THE SCIENCE: Impurity increases the density of water. Salt/Sugar serves this purpose in the experiment. The higher the amount of impurity, the higher the density. What this means is that, the water with high density would stay below the cup.

List of 31 Most Popular Science Experiments For Kids

Here is a compilation of the top 31 most popular science experiments for kids. I hope you enjoy surfing through them and trying out the ones you can.

  1. Floating Egg Experiment: This experiments compares the density of water to density of salt water. If done properly, you would end up having a floating egg inside the middle of a glass cup.
  2. Melting Chocolate:  This experiment would show you the importance of temperature in relation to melting point. We used chocolate as our experimental material.
  3. Soda and Mentors Experiment: We would create our own ocean tide inside a bottle. With the experiment, you would learn the importance of pressure and surface area.
  4. Egg Bubble: Do you know that egg shells are not as hard as they look? In fact they contain some small holes around them. Try out this experiment to see what I mean.
  5. Taco Sauce Cleaner: Have some few dirty pennies and you’d like to clean it up and make them look neat and sparkling? This experiment would show you how. It’s fun! Turning dirty pennies into neat ones.

  6. Sink or swim?: This experiment would show you the importance of varying density of substances. HINT: The more closely packed the particles of a substance, the more dense they are. Have a look at yourself and see how items sink or swim through various liquid layers.

  7. Straw Bending Experiment: What if you could bend a straw without touching it? More interestingly is the fact that you can bend a straw or any other item with your eyes! Cool huh? Check out how it is done
  8. Glowing Water: Learn how to make your water glow using four different methods.
  9. Lung Doctor Experiment:  Be the doctor in this experiment and measure the volume of air present in your lung. With this cool science experiment, you would learn about the function of the lung and benefits of exercise.
  10. Flying Ping Pong Experiment: Let’s put some ping pong ball in the air and let’s defy the effect of gravity force. In this experiment, you would learn about the relationship between pressure and gravity as you balance ping pong ball in the air.
  11. Parachute Maker: The astronaut to be would definitely love this. If you’ve seen people fly out of air planes with parachute in movies, then it’s time to make your own parachute as well, and most importantly learn the principle behind the functionality of a parachute. Let’s go make some parachute.
  12. Oil and Water Experiment: Have you ever tried mixing oil and water before? What was your observation? Do you know why oil and water react the way they do? Learn all about this by carrying out this fun science experiment
  13. Egg Test: Can’t tell if an egg is boiled or raw? Seriously? It’s one of the easiest thing to do, when you master the “trick” discussed in this experiment. Have fun!
  14. Fizzy Lemonade Drink: Do you love fizzy drink? then it’s time to make yours! This experiment would show you how to do that. Baking powder, sugar, water and of course lemon is all you need to pull it off…

  15. Small Bottle Tornado: You’ve probably seen tornado on weather channel before; agreed those ones are scary. How about creating a tornado you can control?
  16. Volcano Experiment: Let’s create an artificial volcano. This experiment would teach you some basic chemistry lesson.
  17. Bath Salt: Have you ever used a bath salt before? If yes, then let’s create our own and see what it looks like. If no, then it’s time to know how it is done.
  18. Seed Germination: This experiment is fun, you get to watch the process involved in seed germination into plant.
  19. Balloon Sound Amplification: Learn the principle behind sound amplification in this simple experiment using ordinary balloon.
  20. Taste and Smell Test: Understand the basis of how your sense of taste and sense of smell functions using this fun science experiment.
  21. Rainbow Maker: Let’s make our own rainbow on a sunny day!
  22. Bucket Spinning Experiment: Ready to get wet and soaked in water? Or Maybe not… Let’s see how this ends. Learn about centripetal force and circular motion in this fun science experiment for kids.
  23. Magic, Invisible Ink: Let’s make ourselves some Hogwart pen with invisible ink. Using lemon and other household materials, we would create a invisible ink for your diary.
  24. Bouncing Ball Experiment: Do you know that energy cannot be destroyed? They can only be transformed from one form to another. Let’s check a classical example of energy transfer with this experiment.
  25. Ice Melt and Water Overflow: If you have a cup full of ice cubes, full to the brim, such that the ice is a little bit above the top of the glass. When the ice melt will the water overflow? Let’s try and see.
  26. Orange Float Experiment: If you place an orange in a bucket of water, would it float or sink?
  27. Potato and Straw Experiment: Is it possible to pierce a potato with ordinary drinking straw? Let’s see how in this fun science experiment.
  28. Escaping Water Experiment: Let’s transfer water from one container to another without touching it using a cool scientific experiment.