I am not kidding when I say these are some of the best science experiments for kids, and I have great reasons why! Hands on, simple and inexpensive science ideas you can do at home or in the classroom. Get your middle schoolers thinking and learning with one of these awesome science experiments below.


Best science experiments for year round learning that kids will love. Cool science activities for preschool, kindergarten, and early elementary age kids.


I thought it would be helpful to put our most popular science experiments in one place for you. Make sure to bookmark them to use all year round. The one thing I really like about how we do science and STEM here is that we do it simply!

We don’t use complicated or expensive materials. Plus, we don’t do complicated set ups, just tons of fun and hands on learning. Because we want everyone to be able to access science. Most importantly, we want it to be easy!

There are a few basic materials that are nice to have on hand. A well stocked pantry will get you through a ton of simple science experiments. Even better, you can put together a homemade science kit!


Here’s a list of a few more awesome resources you will want to check out. Plan a year of science using all our ideas, and you will have an awesome year of learning!

BONUS!! Check out our spooky Halloween Science Experiments!


Balloon Experiment

Blow up a balloon with just baking soda and vinegar. A fun and easy way to observe a simple chemical reaction.

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Cabbage pH

In this science experiment, kids learn how cabbage can be used to test liquids of varying acid levels. Depending on the pH of the liquid, the cabbage turns various shades of pink, purple, or green! It’s incredibly cool to watch, and the kids love it!

DNA Extraction Lab

This strawberry DNA extraction lab is perfect for middle school science. Smashed strawberries, DNA you can see, and an AMAZING new learning experience!

Also check out our Candy DNA Models!

Strawberry DNA Extraction

Green Pennies

Why is the Statue of Liberty green? It’s a beautiful patina, but how does it happen? Explore the science in your own kitchen or classroom by making green pennies! Learning about the patina of pennies is a classic science experiment for kids!

Grow Crystals

Grow large beautiful crystals with a simple supersaturated borax solution to learn more about chemistry. Also grow salt crystals!

Homemade Thermometer

This DIY thermometer is an AWESOME science activity for kids of all ages! Create your own thermometer from a few simple materials, and test the indoor and outdoor temperature of your home or classroom

DIY Thermometer

Ice Cream In A Bag

A chilly science experiment you can eat! What could be better!

Ice Cream In A Bag

Lava Lamp Experiment

What happens when you add alka seltzer tablets to oil and water? This has to be one of our all time favorite science experiments for kids.

Lava Lamp Experiment

Oil Spill Experiment

Use this oil spill demonstration with your kids to express the importance of caring for our natural resources. Learn more about ocean pollution as you create your own oil spill model and try to find ways to cleanup the oil. 

Oil Spill Experiment

Click here to get your FREE Science Activities Calendar

Paper Roller Coaster

Combine design and engineering for a STEM idea that will provide hours of fun and laughs! Build a marble roller coaster with some recyclables and a handful of marbles. Make it as easy or complicated as your imagination wants!

Marble Roller Coaster

Plastic Milk

Kids will be amazed by the transformation of a couple of household ingredients into a moldable, durable piece of a plastic-like substance. This milk and vinegar science experiment is a terrific example of a chemical reaction between two substances to form a new substance.

Milk & Vinegar

Rainbow In A Jar

This water density experiment with sugar uses only a few kitchen ingredients but produces an amazing science experiment for kids!

artificial rainbow
Rainbow In A Jar

Rock Candy

Grow sugar crystals and make homemade rock candy with this simple science experiment.

yummy sugar crystals for edible science on table

Rubber Band Car

Kids love building things that move! Plus, it’s even more fun if you can make a car go without just pushing it or adding an expensive motor. Design a rubber band powered car for your next STEM project.

Check out more Self Propelled Vehicles you can make!

Seed Jar

Watching seeds grow is an amazing science lesson for kids. This seed germination experiment gives kids the opportunity to see up close how a seed grows and what would actually be happening under the ground!

Seed Jar Science Experiment Spring Science Growing Activity


Our classic homemade slime recipes are perfect for hands-on science. Slime is one of the best examples of a non-Newtonian fluid. It’s all about the slime activator. Make borax slime, liquid starch slime or slime with saline solution.

Solar Oven

Make your own sun oven or solar cooker for melting s’mores. No campfire needed with this science activity! From shoe boxes to pizza boxes, the choice of materials is up to you. 

DIY Solar Oven

Water Filtration Lab

Learn about filtration and make your own water filter at home or in the classroom. All you need are a few simple supplies and some dirty water you can mix up yourself to get started. 

Zip Line Activity

Check out the physics involved in creating a zip line. It’s great hands on science for kids that is definitely playful!

LEGO Zip Line Kids Activity

I hope you have found some new science experiments to incorporate into your lessons or free time this year. Science is perfect all year round and our best science experiments for middle school make it easy to share science with your kids.


Click on the image below or on the link for tons more amazing science experiments for kids.


  1. These are surely great activities for kids to help their curious minds explore the world of Science!

    If you are planning for a Science Birthday Party for kids near Markham, Etobicoke, Toronto or in GTA areas, Chamelea Science Center give you the services you need. We also have Day Camp or After School Programs.

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