15 Cool & Fun Science Activities for Kids

We love fun science activities and science experiments.  We have a whole list of fun ways to learn and explore today with your little scientist.

It is easier than you might think to have some serious fun with science in your backyard or on the kitchen table. Don’t be intimidated and get curious with a science activity!

15 Fun Science Activities for Kids - 6 different science activities shown from building a bridge of pennies to colorful foaming backyard science activity fun.
Let’s play with a science activity today!

Simple Science Experiments for Kids

You can set up a learning laboratory anywhere…on the back porch, on the driveway, on the sidewalk, on the kitchen counter, in the laundry room…even in the bathtub!

We have found some simple science experiments…or science activities…that require supplies that you probably already have at home (or in the classroom). This article contains affiliate links.

15 Best Science Activities at Home or in the Classroom

Paper bridge science activity with 2 red paper cups, a green piece of paper that is holding 23 pennies on it.
Test the stability of the paper bridge and hypothesis how many pennies it can hold!

Paper Bridge Science Activity

Build a bridge  with two plastic cups and construction paper and test your hypothesis of how many pennies it can hold before the bridge collapses.

Homemade Kazoo Activity

Explore sound with a homemade kazoo made with simple items you’ve got in your kitchen!

Cattail Science Craft For Preschool Kids

Perfect for the spring, learn about plant growth spurts and how seeds spread from plants to grow new ones.

STEM Marble Run

Create a marble run to learn about physics.  Make predictions about what will happen each time you make a change to the track.

Learn about plant growth spurts and how seeds spread from plants to grow new ones.

Seesaw Science Experiment

Explore the relationship between a lever and fulcrum by launching ping pong ball with a homemade lever.  This is perfect for all ages.

Doppler Effect Science Project

Use a wire hanger and a string to make this simple activity to teach sounds waves.

Milk and Food Coloring Experiment

Try this experiment with milk and food coloring to see what happens when you add in grease-cutting dish detergent.  Make predictions and discover what happens!

Baking Soda and Vinegar Experiment

This fun and colorful experiment teaches chemical reactions with just a few ingredients you’ve got in your kitchen!

Science Experiments With Water

Talk about water absorption with your kids then test their theories by taking items around your house and placing them in water.

Sink or Float Experiment

Here is one of the most simple fun science activities you can do with your kids.  Grab a few things from around the house and a bucket of water and guess which will sink and which will float.

Fun Science Experiments for kids like milk and food coloring experiments, chromatography experiment, chemical reaction experiments, marble run to learn about physics, and baking soda and vinegar reactions.
Learn about physics with a fun marble run or chemical reactions with pennies!

Chemical Reaction Experiments

Learn about more chemical reactions by turning a  penny green. There is also a free printable to track your observations!

Plant Project Ideas

Observe a plant bulb growing by watching it slowly grow in your house for a month.

Dancing Raisins Experiment

Mesmerize your kids by making raisins dance! See what happens when you add carbonated water to raisins.

Paper Chromatography Experiment

Explore chromatography using coffee filters and markers.  Your kids will love this!

Science Experiments With Tea Bags

Using recycled materials and a tea bag, you can make your own rocket!

Science Activities for Kids of All Ages

Kids are super curious and science is the perfect way to entertain them while learning and having a really good time. These science activities are great for kids of all ages:

Science Activities For Toddlers

A lot of supervision and direction is needed from the adult and the toddler science activity is more about what will happen and less about why it did.

Science Activities For Preschoolers

Again, a lot of supervision and direction is needed from the adult and the preschool science activity is about what will happen and then playing with what did happen. Kids at this age may start to question how.

Science Activities For Kindergartners

Supervision is necessary, but the direction of what is happening is shifted more to the child. Let the child explore (safely) within the perimeters of the science activity and talk about what is happening and why.

Science Activities For Elementary School and Beyond

These activities make great inclusions into science lesson plans and the basis for science projects. Everything in science can be just the start of the exploration of knowledge!

We Wrote THE Book on Science {Giggle}

Our book, The 101 Coolest Simple Science Experiments, features tons of awesome activities just like this one that will keep your kids engaged while they learn. How awesome is that?!

The 101 Coolest Simple Science Experiments

Science Kits that Put all the Supplies in Your Hand

These science kits make it simple and easy to start experimenting right away! Here are a few of our favorites!

SK collage2

Looking For More Science Fun?

What science activity are you going to start with first??


  1. Cool very handy 4 us

  2. #12 Bulb Planting link is the wrong one.

  3. Such a cute idea. Hi I would also like to share this E learning application that will surely help your child improve their knowledge and academic skills. We also offer tutorial services to guide your child throughout the learning journey. For more info please visit https://techhubcorp.com/solaro/

  4. These are awesome. Thanks! I may do some with my kids, I also let them read fun science slogans. I can share a few of them with you if thats okay

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