Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

The objective of this science project is to investigate patterns in fingerprints among family members.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

The scientific purpose of this experiment is to investigate which material is the best packaging for fragile items during shipping.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

Science fair project that determines whether mass and weight are the same or different.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

Science fair project that helps visualize how the human brain functions by constructing a model of a brain.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

Kids will make a homemade electroscope and explain how it detects static charges through induction in this fun science fair project idea.

Check out this fun science project idea to measure the amount of vitamin C in ripe, half-ripe, unripe and stored oranges.

In this fun science fair project, draw a 3D picture and compare the holographic effects of red and blue 3D glasses and HD glasses!

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

This science fair project idea explores the different properties & interactions of sugar molecules.

Investigate which substances are most effective at removing salt from water.

Get a fun science fair project idea for high school students on the basic and current information on the process of propulsion.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

Research hemispheric brain dominance in order to determine if you have a dominant side. Test foot, ear dominance. Record observations.

Determine whether the application of Febreeze will lower the bacterial count.

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

Melt the ice, but save the lawn. The objective of this science fair project is to explore the effects of different substances on melting ice.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

This project examines the vulnerability of fruit flies, Drosophila melanigaster, to irradiation. Will exposure result in mutations?

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.