This science fair project idea investigates the difference in reaction times between boys and girls.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Science fair project that examines condensation and the conditions needed in order for dew to form.

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

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.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

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.

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.

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.

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.