This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

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

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

Free science fair project idea examining how different types of water affect plant germination and growth.

Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

In this experiment, students create music with subliminal messaging to try to influence people's decision-making.

This experiment will explore whether adding different substances to a gel affects its strength.

This fascinating science fair project explores eye color genotypes.

In this project, you'll create Oersted's experiment, which relates to how electric currents create magnetic fields.

Does nail polish really slow the growth of nails? Explore in this science fair project idea.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

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

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

Find out whether pacing in long-distance running actually acquires for drastic changes in finishing times versus running super-fast at the start.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

Study the effect of music on random rote memory. Examine the practical application of music in learning and education.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

The project researches how lubricants affect the mechanical advantage of a pulley.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

The objective of this experiment is to evaluate whether funny advertisements are more or less effective than serious advertisements.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Study emulsifiers and learn how they are used in food science, medicine, soaps and cosmetics. Identify which materials are created using an emulsifier.

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.

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.

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!