This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

Learn about emulsification and bile's roles in digestion, and investigate how the digestive enzyme lipase breaks down lipids.

Explore the relationship between personality traits and birth order effects.

Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

In this science fair project, high school students will try to determine the mathematical patterns in JS Bach's two movement preludes and fugues.

Examine the effect of pressure on carbonation in soda.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

This science fair project idea identifies and understands adaptations in birds.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

This project examines whether more expensive golf balls translate into better results on the golf course.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

Science fair project that determines whether spreading a moss soup over an area increases moss growth.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

This science fair project idea quantifies growth of seedlings at various pH levels.

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

The purpose of this science project is to determine whether the amount of air in a soccer ball affects how far it goes when kicked.

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 tests the effects of temperature change on the reactivity of the catalase enzyme.

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!