Science doesn’t need to be complicated or difficult. These easy science experiments below are awesome for kids! They are visually stimulating, hands-on, and sensory-rich, which makes them both fun to do and perfect for teaching simple science concepts at home or in the classroom. Also, check out our top STEM activities and best science resources to get started!

EASY SCIENCE EXPERIMENTS FOR KIDS!

STEM activities for kids. The best resource for science activities and STEM challenges you will ever need. We have everything science including chemistry and physics for kids for ages 3-9. We even have slime science and homemade slime recipes. Simple and easy kids science experiments that make for fun science activities kids can't get enough of!

HANDS ON SCIENCE ACTIVITIES

Kids are curious and always looking to explore, discover, check out, and experiment to find out why things do what they do, move as they move, or change as they change! My son is now 13, and we started around three years of age with simple science activities. Here’s our very first experiment.

Science learning starts early, and you can be a part of that by setting up science at home with everyday materials. Or you can bring easy science experiments to a group of kids in the classroom!

We find a ton of value in cheap science activities and experiments. All our science experiments below use inexpensive, everyday materials you can find at home or source from your local dollar store. We even have a whole list of kitchen science experiments using basic supplies you will have in your kitchen.

You can set up these science experiments as an activity focusing on exploration and discovery. Ask questions, discuss what is happening and talk about the science behind it.

You can also introduce the scientific method and get kids to record their observations and make conclusions. Read more about the scientific method for kids to help you get started.

WHAT ARE EASY SCIENCE PROJECTS TO TRY?

Jump into science with these favorite science experiments and use them right through from preschool to middle school! These easy science projects use household items, include a bit of play, and don’t require exact measurements or steps.

If you’re looking for the easiest science experiment you can do with kids at home or in the classroom, look no further than the classic sink or float experiment. Grab the FREE printable science worksheets below to get you started.

TOP 10 SCIENCE EXPERIMENTS

If you only have time for one or two science experiments, here are our suggestions. Our top 10 science experiments for kids are our most popular science experiments of all time and have been done again and again! You will even find some fun theme variations for a few of these kids’ science projects.

Click on the titles below to get the full supplies list and easy step-by-step instructions. Have fun trying these experiments at home or in the classroom, or even use them for your next science fair project!

1. Baking Soda Balloon Experiment

Can you make a balloon inflate on its own? Just a few simple ingredients from the kitchen, baking soda and vinegar, and you have amazing chemistry for kids at your fingertips.

We also have a fun Halloween balloon experiment and a Valentine balloon experiment.

2. Rainbow In A Jar

Enjoy finding out about the basics of color mixing all the way up to the density of liquids with this one simple water density experiment. There are even more ways to explore rainbows here with walking water, prisms, and more.

artificial rainbow

3. Magic Milk

This color-changing magic milk experiment is an explosion of color in your dish.  Add dish soap and food coloring to milk for cool chemistry!

We even have done it as a Christmas experiment and for St Patrick’s Day science

4. Seed Germination Experiment

Not all kid’s science experiments involve chemical reactions. This science experiment for kids is lots of fun because they can see how a seed grows for themselves. It is also a great experiment to introduce the scientific method to kids, as it is easy to vary the conditions the seeds grow under.

5. Egg Vinegar Experiment

One of our favorite science experiments is also called a naked egg or rubber egg experiment. Can you make your egg bounce? What happened to the shell?

6. Dancing Corn

Find out how to make corn dance with this easy experiment. Also check out our dancing raisins and dancing cranberries.

7. Grow Crystals

Growing borax crystals on seashells is actually very easy to do and is a great way to learn about solutions. You could also grow sugar crystals or salt crystals.

Growing crystals is great for themed science. Check out these fun ideas…

Crystal Rocks

8. Lava Lamp Experiment

Great for learning about what happens when you mix oil and water. A cool science experiment kids will want to do again and again!

Check out these fun variations…

9. Skittles Experiment

Who doesn’t like doing science with candy? Try this classic skittles science experiment and explore why the colors don’t mix when added to water.

10. Lemon Volcano

Watch your kids’ faces light up and their eyes widen when you test out cool chemistry with common household items, baking soda and vinegar.

We have so many fun variations of this fizzing, erupting chemical reaction you will want to try. Check out a few below…

Build a sandbox volcano for baking soda science and chemistry! Sand box science for kids outdoor STEM activities.
Water Bottle Volcano

Which one of the top 10 science experiments will you try first?

Click here or below to get your free science ideas pack

SCIENCE FAIR PROJECTS

Want to turn one of these fun and easy science experiments into a science project? Then you will want to check out these helpful resources.

MORE MUST TRY SCIENCE EXPERIMENTS

Learn about the patina of pennies with this green pennies experiment.

Explore sound and vibrations when you try this fun dancing sprinkles experiment with the kids.

Explore how some liquids are heavier or denser than other liquids with this super easy liquid density experiment.

Make pepper dance across the water with this easy pepper and soap experiment.

Grab some marbles and find out which one will fall to the bottom first with this easy viscosity experiment.

Can you blow up a balloon with just salt and soda?

Pull out the bin of markers and search for the black ones to get started with this fun chromatography lab.

Just a few common ingredients and you are well on your way to ooohhhs and aaahhhs with this Alka seltzer science experiment.

Explore friction with this easy floating rice experiment.

Find out how to make the water level rise with a burning candle in water.

Electric cornstarch is perfect as an experiment to demonstrate the power of attraction (between charged particles, that is!)

Create a frothing brew with this cool elephant toothpaste experiment.

Love fizzing and exploding experiments? Try this erupting mentos and soda experiment.

Explore changes in air pressure with this crushing soda can experiment.

Can you inflate a balloon with just pop rocks and soda?

Try this cool pop rocks experiment that explores viscosity and the sense of hearing.

Explore what happens to ivory soap in the microwave with this expanding ivory soap experiment.

Test out your sense of smell with a citric acid experiment.

A fun gummy bear experiment all in the name of science and learning.

Explore what solids dissolve in water and what don’t with this easy water experiment.

Try this very simple to set up solid, liquid, gas experiment.

Learn about what happens when you mix oil and water together with this oil and water experiment.

Mix up your own bubble recipe and get blowing. Learn about bubbles with these bubble science experiments.

This easy viscosity experiment looks at different liquids from around the house and compares them to each other.

Make an awesome foam with this yeast and hydrogen peroxide experiment.

How do whales stay warm? Test out how blubber works with this hands-on blubber experiment.

Learn about ocean pollution with an easy oil spill experiment.

Can you make a floating drawing? Try this simple dry-erase marker experiment.

Make a homemade lava lamp with salt.

Will it freeze? What happens to the freezing point of water when you add salt?

Learn about osmosis when you try this fun potato osmosis experiment with the kids.

Make your own magnifying glass from a few simple supplies.

Can you make a paperclip float on water? Try this fun floating paperclip experiment!

Turn water vapor into ice when you make frost on a can.

You will love the noise you can make with this screaming balloon experiment.

Make homemade oil and vinegar dressing for fun chemistry you can eat. 

Explore the plant pigments in leaves with this leaf chromatography experiment.

Write a secret message with homemade invisible ink.

Make red cabbage indicator and test the pH of different solutions.

Explore how your lungs work with a lung model or your heart with this heart model.

SIMPLE SCIENCE EXPERIMENTS FOR KIDS BY THEME

We have tons more easy science experiments for you to do with your kids. Choose an experiment by topic or theme with fun holiday and seasonal science ideas.

NEW! SCIENCE PROJECTS BY AGE

KIDS’ SCIENCE EXPERIMENTS BY TOPIC

FUN SCIENCE EXPERIMENTS WITH A HOLIDAY THEME

SCIENCE EXPERIMENTS BY SEASON

MORE HELPFUL SCIENCE RESOURCES

SCIENCE VOCABULARY

It is never too early to introduce some fantastic science words to kids. Get them started with a printable science vocabulary word list. You’re definitely going to want to incorporate these simple science terms into your next science lesson!

WHAT IS A SCIENTIST

Think like a scientist! Act like a scientist! Scientists, like you and me, are also curious about the world around them. Learn about the different types of scientists and what they do to increase their understanding of their specific area of interest. Read What Is A Scientist

SCIENCE BOOKS FOR KIDS

Sometimes the best way to introduce science concepts is through a colorfully illustrated book with characters your kids can relate to! Check out this fantastic list of science books that are teacher approved and get ready to spark curiosity and exploration!

SCIENCE PRACTICES

A new approach to teaching science is called the Best Science Practices. These eight science and engineering practices are less structured and allow for a more freeflowing approach to problem-solving and finding answers to questions. These skills are critical to developing future engineers, inventors, and scientists!

BONUS STEM PROJECTS FOR KIDS

STEM activities include science, technology, engineering and mathematics.  As well as our kids science experiments, we have lots of fun STEM activities for you to try. Check out these STEM ideas below…

If you LOVE art and STEM make sure to check out our STEAM activities for kids!

Click here or below to get your free science ideas pack