Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Plants and light seem to be good buddies, but how far does the friendship really go?

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

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.

Have your child kick off their summer vacation by making a miniature water slide!

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

This science fair project idea examines which type of insulation holds in the most heat.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!