In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

Test for a correlation between perceived color and heart rate. Using a stethoscope and stop watch, measure the heart rate (beats per minute) of volunteers.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

Find out whether freezing or refrigerating destroys more bacteria. This is essential to consuming safe and germ-free food.

Research different measurement systems, design your own new or improved system that can measure something difficult to measure with traditional systems.

This science fair project examines discover whether different formations of deodorant works better for certain skin types.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

Demonstrate the principle of jet propulsion in this science fair project by building a rocket from household materials.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

The objective of this science fair project is to assess the benefits of the game system for improving player performance following use.

Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.

Learn about the right-hand rule for magnetic force! Use a cathode ray tube in this physics experiment to see a magnetic field's effect on an electron beam.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

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

This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

This science fair project teaches students the differences between fruits and vegetables.

This project examines what types of objects burn and which burn faster and cleaner.

Research long-term effects and draft a questionnaire about frequency of marijuana use and average annual income. Interpret findings in a detailed report

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

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.

Find out whether putting something on top of a plant will inhibit its growth.

Test the placebo effect in different groups of people.

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

Evaluate whether people can raise the temperature of their finger using the power of their thoughts.

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

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.