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

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

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

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

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

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

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

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

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

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.

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!

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Discover whether a metal will expand under hot water.

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.

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

Do different types of oil mix or stack? Find out in this science fair project idea!

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

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

This project investigates the affect of storage temperature on microwave popcorn.

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

This science fair project idea investigates how the shape of an object affects drag.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!