This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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

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

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Read on this high school science fair project idea to get basic information on the process of heat transfer and the conditions under which the transfer occurs.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Do people only "hear" what they want to hear? Explore pareidolia and psychoacoustics with this easy science fair project that pits melody against white noise.

Investigate which substances are most effective at removing salt from water.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

This project is about after-images and what possibly affects them.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

This science fair project idea investigates food preference of birds.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Check out this cool and free middle school science fair project idea on how to make a solar oven.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

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

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

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.

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.

Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

Check out this cool science fair project on identifying rocks and minerals for kids.

The purpose of this science fair experiment is to investigate whether the color of your hair affects how much static electricity is carried.