3 simple science activities
Games & Activities,  Toddlers

21 Very Simple Science Experiments for Kids


This post may contain affiliate links. If you click on a link and make a purchase, I may receive a small commission at no extra cost to you. For more information, please read my disclaimer here.

Science is so important to start teaching your kids in early childhood. It can be hard to find very simple science experiments for kids that encourage education, STEM, STEAM, and even engineering activities.

Some of these science activities are messy enough to do them outdoors for easy cleanup, while some are so easy to do at home on a rainy day inside.

Each experiment is fun and easy to do with little kids as young as 2 years old, while preschool-aged children and older will still enjoy them!


very simple science experiments collage

Other Articles You’ll Love:
The Ultimate List of Games for Toddlers
How to Stop Your Toddler From Hitting
The Best Fun Outdoor Games for Kids

21 Very Simple Science Experiments for Kids

Who knew science could be so delicious? This easy Cookie Dough science project gets the kids in the kitchen.

It’s perfect to do at home and even gets the little kids as young as 18 months – 2 year olds involved!

Continue Reading

Tie dying isn’t just for the 90’s. This Tie Dye Milk science experiment teaching preschoolers about coloring and how they mix together.

It’s a good Montessori activity for little kids. Plus they will love making magic milk at home!

Read More

This Crystal STEAM activity teaches kids about chemical reactions in an easy way by growing crystals.

Your preschooler will have fun watching the crystals grow all day and even overnight.

Continue Reading

Any simple science activity that puts together a favorite Disney movie is a winner in my book.

This Frozone Ice Challenge is a STEM activity perfect for toddlers. It includes water, so stick them outside in the summer or with a towel inside.

Continue Reading

This Popcorn and Salt experiment may blow your mind. Your kids will learn how the ingredients are mixed and separated by completing different easy tasks.

Honestly, it even blew my mind!

Continue Reading

This one is a messy one, but isn’t messy science the best? You can put together your very own DIY Moon Rocks with this easy preschool experiment.

There’s even a way to take this activity to the next level. We are talking about space, right?

Continue Reading

Are you really a toddler or kid if you’ve never made Oobleck? This very simple 3-ingredient science experiment is perfect for children of all ages.

It can be used as an educational sensory activity and a fun way to explore how certain ingredients react.

Continue Reading

This educational Simple Candle Science Experiment is for the older kids, but younger kids can have just as much fun watching.

It includes several experiments in one to see how each candle is affected.

Continue Reading

This Color Changing Flowers Science Experiment has always been a favorite of mine. Your preschoolers will learn how the flowers can change colors by using simple materials.

You can even keep them for a bouquet after you’re done.

Continue Reading

Rainbow Walking Water is a very simple science experiment for kids. It includes supplies typically found around the house, making it so easy to do at home.

Your kids will love watching the colorful rainbow appear and creates an educational activity that’s also fun!

Continue Reading

Nothing is better than a little water play for toddler. This Floating and Sinking experiment teaches children as young as 2 years old about how some things and… well some things sink!

This set up also doubles as an inside or outside water sensory activity.

Continue Reading

I love simple science experiments that any kid can do despite their artistic ability. This Coffee Filter science activity is just that.

Let your toddler draw whatever their heart desires and watch science do its part to make it a beautiful art piece.

Continue Reading

This one needs a little more adult help, but when science ends in eating food, it’s a must. Help your preschooler grow Rocky Candy with just simple materials found around the house, like water and sugar.

It takes patience, but the result is so cool!

Continue Reading

A simple Fizzing Treasure Rocks Experiment that doubles into two activities. First, your preschooler will have fun forming their treasure rocks. Then, they get to watch them fizz away!

This science experiment is perfect for kids of all ages and watching things fizz never gets old!

Continue Reading

A simple last-minute DIY science experiment you can do at home on a rainy day. It includes materials found right around the house.

It can get a little messy, but that’s why they invented smocks like this one (LINK), right?

Continue Reading

Watching your kid’s reactions to this STEM Self-Inflating Balloon Science Experiment is a good activity by itself.

Your preschoolers will love seeing how different ingredients cause different reactions.

Continue Reading

This Erupting Lemon Volcano Experiment is so simple, you can do it with young toddlers. It’s a little messy, but you can bring it outdoors in the summer to avoid the cleanup.

You can even try it with a variety of fruits to see how each of them react!

Continue Reading

A Dry Ice Experiment that’s okay around little kids? Yep! This very simple science experiment for kids creates the illusion of dried ice, then turns to bubbles!

You can do this activity in the summer outdoors for added fun.

Continue Reading

This Ice balloons Science Experiment for Kids may look like a winter activity, but it can be done all year round.

Your preschooler can create different colored balls of ice.

Put them in outside in the summer for added fun in a water table or pool. Just be sure to wash it out afterward when using food dye.

Continue Reading

A classic Homemade Bag Ice Cream Experiment every child needs to make at least once in their life.

Kids as young as 2 years old will enjoy shaking the ice cream in the bag and eating it afterward. It’s important to keep an eye on them while doing this experiment as the salt should not be eaten.

Continue Reading


Sharing is caring!

Leave a Reply

Your email address will not be published. Required fields are marked *