This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Jazz up your patio or backyard with hip and quirky planters made from simple Mason jars.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

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.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

In this project children practice the scientific method while playing with puffy paint.

Give your science savvy kindergarten a lesson in plant science with this fun carnation experiment.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

Here's a simple and fun kindergarten or first grade gardening activity: grow a miniature container garden in a paper egg carton. Great for kinesthetic learners.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Is your child a young ornithologist in the making?

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

In this science fair project, young children notice and track changes in trees throughout the year.

In this hands-on activity, kids learn what it takes to foster seedlings into full-grown plants, all in a regular old soda bottle!