In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This surprisingly good glue recipe comes from common kitchen items.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

This project compares the strength of one, two, and three-ply toilet paper.

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Discover whether cold or hot water from the faucet will boil faster on the stove.

This science fair project idea investigates whether plants can survive being frozen.

Help your child learn about animal classification with this fun and delicious activity.

Is your child a young ornithologist in the making?

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

This science fair project idea explores how length affects the weight a bridge can hold.

Give your budding young observers a chance to discover simple machines at use in their own home.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

This science fair project idea explores whether talking to a plant will help it grow.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

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

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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