Slip some science into storm watching with a homemade rain gauge!

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

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

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

This science fair project idea investigates if fats add to the flavor of food.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Here's a science and nature activity to help your kindergartener get outdoors and learn about the structure of leaves.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

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.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

Use sticks and stones to create create an outdoor version of tic-tac-toe!

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Test your friends to find out if you can replicate the placebo effect's incredible results.