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In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?