Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

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.

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

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Check out this cool science fair project idea to explore the relationship between pulse rate and blood pressure in healthy people.

The purpose of this science fair project is to build a basic radio.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.

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

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

This science fair project idea studies the differences in gender perception between people.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

2011 VIRTUAL SCIENCE FAIR ENTRY: The objective of this science fair project is to develop a microcontroller and circuit that can conduct electricity.

The goal of this science fair project is to identify the galactic center of the milky way using globular clusters, as found through Google Earth.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Have your child kick off their summer vacation by making a miniature water slide!

Learn how milk freezes into ice cream. Does the fat content affect how quickly the milk freezes? What is salt's role in the freezing process?

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Quench your thirst with great tasting lemonade while you explore the concepts of acid and base, and how these differ from sweet and sour.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

This project examines the affect of temperature on viscosity and surface tension of different liquids.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This science fair experiment examines the relationship between gender, age, and smiling.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.