Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

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

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

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project teaches students about wilting and browning of salad greens.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Learn all about balance and motion as your child designs a corn maze!

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

People have favorite flavors, but what about ants? Which ant food is the most popular?

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Learn about this simple machine and make a pulley of your own to use for fun science trials.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

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

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

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

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.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Start your toy engines -- this is going to be a fast and friction-filled race!

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.