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This science fair project idea explores whether talking to a plant will help it grow.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This science fair project idea examines which type of insulation holds in the most heat.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

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

Is it a square or a circle? See if you can trick your friends with this zany science project!

Plants and light seem to be good buddies, but how far does the friendship really go?

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

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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?

This science fair project idea determines what household items are good conductors of electricity.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

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

This science fair project idea explores the egg's thin membrane.

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

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!

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

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

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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!

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

These science fair experiments demonstrate the chemistry of rust and the oxidation process.