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This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

Are red apples really sweeter than green apples? The objective of this science fair project is to test the theory with quantitative evidence.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

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.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

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.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Check out this cool science fair project idea to explore short and long term memory and whether there is gender differences in memory.

High school kids learn about fruit fly ethology in this cool lab that determines fruit fly movement and behavior under different conditions. Check it out.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Which type of sunglass lenses gives you the best protection from the sun's harmful UV rays? Find out in this cool science project!

Check out this fun science project idea on ecological succession and learn the main difference between primary and secondary succession.

This science fair project idea explores the fastest average speed a human can talk.

Science fair project that determines the correlation between wind direction and subsequent weather patterns.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

Explore the belief in astrology as a predictive system.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Plants and light seem to be good buddies, but how far does the friendship really go?

Science fair project that examines the benefits of the plant enzyme: pectin methyl esterase (PME). Where is PME found in the plant? What does it do chemically?

Is there really such a thing as healthy gum? Students will learn what factors in chewing gum contribute to healthy teeth in this exciting science fair project.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!