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Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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

Using a toy race car kids create a visual model of the Doppler Effect.

This science fair project idea explores the different properties of matter.

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

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

This science fair project idea investigates the hardness property of minerals.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

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.

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Inspire your child to learn about an amazing animal as she creates her very own polar bear habitat.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea examines whether boys and girls differ in reflexes.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

This science fair project teaches students the differences between fruits and vegetables.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

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.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This science project teaches students to classify different shapes of leaves.