This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

Science fair project that measures the relative times it takes a plastic bag and a biodegradable plastic bag to decompose.

This project explores what happens to a rubber band when it is heated and cooled.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Should you use âFITâ Fruit and Veggie Wash or plain water to wash your produce? Find out in this science fair project idea.

This activity is a fun challenge for students who have just started learning to program educational robots.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

This experiment uses a voice recorder to monitor the progression of a message in the telephone game as it deviates from the original.

Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.

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.

It has long been believed that weather influences mood and behavior. This experiment will evaluate if weather can really impact the way people feel.

Culverts transport seeds away from their original location to different places. This science project examines the effect of culverts on plant growth in streams.

Research Earthship buildings. Draft a unique architectural design that repurposes used, discarded radial tires. Build scale model of structure.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

This science fair project compares the abilities of men and women to understand subtle communication through body language.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

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

This science fair project investigates which of two learning modes most commonly used in school, visual and auditory, is better for information retention.

This science fair project idea investigates whether air has mass and weight.

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

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

In this science fair project, students investigate how different colors influence appetite.

Create uphill flow of water by using a siphon. Create vacuum by suctioning one end of tube, and submerge it under water. Watch the direction the water travels.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

This project uses toy cars to determine how friction and gravity affect cars and braking.