This science project allows students to study the psychology of happiness.

This experiment investigates whether smell can be used to enhance test subjects' memories.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

This science fair project idea determines whether the older population prefers darker, duller colors rather than bright and lush colors.

This science fair project idea explores the egg's thin membrane.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

This experiment investigates whether the psychological phenomenon of the halo effect can be used to explain people's perceptions of others.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

This science project researches the correlation between barometric pressure and wind velocity.

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

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

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

This fascinating science fair project explores eye color genotypes.

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

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

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

In this project, you'll create Oersted's experiment, which relates to how electric currents create magnetic fields.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

A math project teaches students to use a clinometer to gauge the height of very tall objects like trees & to think of better ways to measure how high they are.

Does nail polish really slow the growth of nails? Explore in this science fair project idea.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This science fair project idea attempts to develop a new or improved eco-friendly packing material.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Test the effects of left and right handedness on writing speed and penmanship. Volunteers hand-copy the same paragraph of text, which samples look neater?

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

In this science fair experiment, middle school students evaluate whether tone of voice can influence our ability to remember a list of everyday objects.

This science project has students study the idea of human beauty.