Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

This science fair project idea explores whether a person's ability to see under very dim lighting conditions diminishes with age.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Check out this cool science fair project idea on spectrum spinners and investigate how certain color combination can produce other colors.

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Consult astronomers for opinions and advice. Devise a mathematical argument regarding the probability of other planets supporting extra-terrestrial life.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Free science fair project idea examining how different types of water affect plant germination and growth.

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

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.

Determine if gender affects the ability to identify different smells.

Research currently available fuel sources, and fuel manufacturing and processing techniques. Propose an alternative fuel source.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Research what is known about Alzheimer's disease and its treatment, and then prepare a script for television to educate the public.

This project involves the programming and development of a 3D Rubik's Cube application using C++.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This science fair project idea discovers the principle of conservation of mass.

Determine how good we are at direct and indirect observation.

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

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

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!