Determine which video game elevates the heart rate best and burns the most calories.

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

This project concerns activity happening millions of miles away, on the sun.

This project examines whether humans can intuitively grasp numeric values greater than three.

A fun, life science sxperiment idea idea involving strategies for keeping birds away from crops using a distress call. What kind of distress call works best?

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

This science fair project idea explores whether talking to a plant will help it grow.

This experiment explores the question of whether age and/or gender play a role in people's ability to remember dreams.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This project examines whether and what associations exist between numbers and letters and colors.

Examine whether males or females are more likely to have a higher center of gravity.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Science fair project in which you will stage an election campaign to determine whether people are more swayed by a positive ad or negative ad.

This science fair project idea investigates how images are influenced by changes in light.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

This science fair project idea studies the acidity of rain water and whether the acidity is the same on all rainy days or does it fluctuate.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

This science fair project idea determines the probability of a coin landing heads or tails.