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!

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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!

This science fair project investigates why the number of visible stars changes from place to place.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

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

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

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

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.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

This science fair project idea explores whether white light can be separated into different colors.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Test whether plants can grow without sunlight and water.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Cleaning can be a chore, but not with this sudsy experiment!

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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