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

Make a list of items that need repurposing such as e-waste, batteries and mattresses. Invent your own original repurposed design.

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.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

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.

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.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

Test whether plants can grow without sunlight and water.

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

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

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Science fair project that creates a pamphlet to help others learn about Epilepsy, its causes, symptoms and treatments.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.