The Ultimate List of Mason Jar Science Experiments

One of my favorite tools for doing science and STEM is a simple glass jar (you can also use plastic with younger kids!).

Jars are perfect for measuring, experiments, and all kinds of learning, and their clear apperance makes it easy to see reactions!

Keep reading to find a list of our favorite mason jar science experiments!

What can you do in a jar? Quite a lot! These mason jar science experiments are so much fun, and help teach kids the basics of the scientific method and science vocabulary even if you're not a science teacher! Make learning science fun again! It's not just a jar, it's a science jar! #stem #stemed #science #scienceexperiments #scienceforkids #scienceideas #scienceclass #masonjar #kidsactivitiies

How I got into mason jar science experiments

When my oldest was four, I wanted to help her learn to love reading.

I got out all my favorite books, many of which had fantasy themes.

But she HATED those books.

I was confused. What kid doesn’t like fantasy books?

So, I took her to the bookstore and let her pick out the books.

She picked books on animal science, weather science, and chemistry.

Science was my most hated subject in school, so I was in trouble.

How could I foster her love of science when I didn’t know much about science?

After thinking a while, I realized we could do fun science experiments together. She’d be learning, and I’d be learning right along with her!

I didn’t have any formal science equipment, so I used what I had. Which happened to be mason jars. So, we started doing Mason jar experiments!

That was over 7 years ago, and since then, we’ve done hundreds of science experiments for kids and STEM activities, most of which were done in jars!

Now, we have the Jarring Science Club so you can do your experiments in jars, too!

Mason Jar Experiments to Try at Home

If you love doing quick science experiments that wow, try these incredible mason jar science experiments!

Why Do Mason Jar Science?

Today, science experiments for kids are more important than ever.

Science and technology are huge parts of our world today, and the future will be even more science and tech-focused.

Kids who aren’t immersed in the world of science and STEM exploration from a young age will be left behind their peers, and may struggle to find work in the fast-changing landscape of future careers.

The simple science experiment that a child does today may spark their desire to discover something that will change the world in the future.

Every day, young children are using science experiments to solve real-world problems in medicine and technology that have never been uncovered before.

And all these scientific discoveries start with a firm foundation in science and STEM.

Don’t Miss: 31 Creative STEM Activities for Kids

WHY DO SCIENCE IN MASON JARS?

You certainly don’t have to use mason jars for science. We’ve also used pickle jars, olive jars, jelly jars, and baby food jars.

But the main benefit of using a mason jar for science is that they are glass. Plastic isn’t a suitable material for many science experiments, because it can warp or melt.

Glass, on the other hand, is what most science equipment is made of and creates purer results.

THE MASON JAR SCIENTIFIC METHOD FOR KIDS

Every science experiment contains four elements:

A Question

Kids should start every science experiment with a question, even if that question is just “what will happen?”

A Hypothesis

Before doing any experiment, children should record what they believe will happen.

An Experiment

This is where the fun part comes into play. Test the hypothesis to determine if it answers the question fully.

A Recording and Analysis

As the test is completed, record what happened and analyze why.

A Re-test

Try different variables and try a new test to see if the original answer is confirmed or disproved.

Elementary Science Kits for Kids

Here are some of our favorite science kits to do in the classroom as a group in elementary!

STEM Kits for 1st Grade

You may also like: More Science Experiments in Jars

Get Ready-to-go Science Kits!

If you love science and STEM but don’t like hunting for supplies, we love the Mel Science kits. They have options for elementary and middle school, and each kit comes with all the supplies needed for each experiment!