This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

Science fair project that determines which foods and drinks contain the highest amount of glucose.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

Science fair project that determines the effect of concentrated mental effort on physical performance levels.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Explore the concept of receptive fields and why different parts of our body have different levels of sensitivity.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

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.

Determines the extent that high school GPA predicts future income. Survey volunteers, divide GPA into 5 categories, compare income levels with GPA

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

This cool electricity project teaches kids how connecting batteries in series vs. parallel circuits can contribute to different levels of voltage and amperage.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

In this experiment a spectrometer is used to analyze the light emitted by burning ion solutions.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

This science fair project idea explores whether certain physical and mental traits run in the family.

Teach your preschooler some physics that she can relate to with this fun and simple activity!

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.