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

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this activity, your child will be challenged to make a tower using paper cups.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

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

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

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.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

Help your first grader design and create his very own bird feeder out of an empty milk carton.

Using a toy race car kids create a visual model of the Doppler Effect.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Make a lei and bring a touch of the tropical lifestyle into your home!

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

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

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

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

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.