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.

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.

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.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Are you looking for an out-of-this world activity that's both fun and educational? This solar system garland is a great way to introduce your child to astronomy.

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

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.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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.

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!

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

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 to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

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.

This science fair project idea explores the egg's thin membrane.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

In this experiment we will be determining whether birds prefer certain colors of seed.