Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Create a bee garden to help shelter bees in your area.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

This clay "painting" activity encourages and supports creative development and critical thinking skills.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

In this project, the fingerprints of family members are compared to determine if people from the same family have similar fingerprints.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Construct batteries that make electricity from fruits with this fun science fair project.

What combination of cloth and stain will be the easiest for removing stains? Test and experiment!

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

Find out whether a longer airplane will fly farther or a wider paper airplane.

Will the shape of an ice cube impact how fast the ice melts?

Use pepper and soap to discover some fun facts about the properties of water.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Construct and experiment with a periscope using reflected light rays to gather an image.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

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

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

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.