Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

Discover which fabrics shrink the most in the wash and why.

Learn about Ikebana, or the Japanese art of flower arranging, with your child while artfully arranging spring flowers!

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

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

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

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

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Find out whether putting something on top of a plant will inhibit its growth.

How do organic materials become soil? This science experiment measures what materials biodegrade.

In this project, a magnet is used to collect iron from breakfast cereals.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

This science research project challenges students to think of more effective lobster farming methods.

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

Construct batteries that make electricity from fruits with this fun science fair project.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

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

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

In this project, a mnemonic is used to test how it increases memory.

This science fair project idea measures and compares effects of chemical weathering, specifically carbonation, on different kinds of rocks.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.