How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

Discover whether a metal will expand under hot water.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

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

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Determine if gender affects the ability to identify different smells.