This experiment explores whether caffeine improves athletic performance.

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

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

This science project has students study the idea of human beauty.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

This science fair project explores discover whether the acidity of sour candy is comparable to that of battery acid.

In this science project, the center of gravity is explored.

Compare different remedies for cooling the mouth after eating spicy food.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Demonstrate Newton's laws of motion by examining the relationship between mass, force, and acceleration during free-fall.

This science fair project idea creates an underwater habitat and explores the basic needs of living things under water.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

Create a colorful, informative display that illustrates the properties of blood cells. Prepare slides using samples of fresh raw beef or chicken bone marrow.

Study the effect of music on blood pressure. Compare blood pressure readings before and after the listening session. Analyze results, write a detailed report.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This science fair project examines how seeds hitchhike on animals and clothing.

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

In almost every preschool classroom is a sensory table. Learn how to make one at home!

This experiment tests which gender is better at catching how a magician performs his tricks.

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

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Describe the lives of commercially raised chickens. Contact local chicken farmers for information and advice. Write a detailed report about farming techniques.

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.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!