This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

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

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.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

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

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

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

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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?

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

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.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

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.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.