What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Experiment with fermenting various fruits, grains or syrups. Describe and illustrate the fermentation process in a detailed report.

This project researches whether the type of land use affects the water quality of Queenstown Creek.

Check out this cool middle school science fair project idea to find the difference between organically grown and commercial brands of foods.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

Learn the chemistry and physics of the brain, how our nervous system work. Demonstrate that the brain is an electrical and chemical machine.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

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.