This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

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.

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

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science fair experiment idea's objective is to understand the general concept of an acid and a base.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

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

Make a backbone model to explore human anatomy and life science.

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

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

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin