Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Make a backbone model to explore human anatomy and life science.

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

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

This science fair project idea explores whether talking to a plant will help it grow.

This science fair project idea examines liquids of different densities.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

This science fair project idea experiments with spinning color wheels and optical illusions.

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

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

This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project idea explores whether white light can be separated into different colors.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science fair project idea investigates the hardness property of minerals.

This science fair project idea examines whether boys and girls differ in reflexes.

This science fair project idea investigates how color affects temperature.

This science fair project idea explores the egg's thin membrane.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea demonstrates that plants give off water.

This science fair project idea researches the effects of acid rain on plant growth.

This science fair project idea examines the reason boats are shaped and engineered.

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

This science fair project idea produces varying pitches of sound.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.