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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.

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

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

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.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

When critters protect themselves by taking on the patterns of nature, it's called "camouflage." Play this camouflage matching game with your child!

Satisfy your kindergartener's fascination of different sounds with this easy science project, where they'll use their ears instead of their eyes to identify sounds!

Create your very own scented hand sanitizer that will help your child to keep those nasty germs at bay!

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

Your kindergartener will make prints of his favorite fruits and vegetables and learn how to organize and assemble his very own book.

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

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

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.