How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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!

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

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

This science fair project will help students learn about non-vascular plants, such as mosses.

This science fair project idea investigates the difference in reaction times between boys and girls.

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

Explore if planting seeds in a certain direction will affect how fast it germinates.

This science experiment tests if dog saliva can really help heal wounds.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this activity, your child will be challenged to make a tower using paper cups.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

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

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.