This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

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.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Do you think heat can affect a plant's growth rate?

In this fun experiment, we'll find out how color affects heat absorption!

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

This science fair project idea explores whether color affects a person's emotional state.

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?

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Demonstrate how to tell the age of an egg without having to crack it open.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

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

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

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

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

This science fair project idea investigates whether plants can survive being frozen.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!