This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.

The objective of this science fair project idea is to explore which brands of "anti-fade" shampoos work the best to keep hair color looking fresh.

Learn whether dark green and leafy veggies tend to have a higher Vitamin C content than lighter green varieties.

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

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.

In this project, you will observe and record changes in sunspots over two weeks.

This project analyzes people's emotional responses to images in painting vs similar images in photographs.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

In this science fair project, young children notice and track changes in trees throughout the year.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

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

In this activity, find out who the flowers' "partners in crime" are by being a flower spy!

In this science fair project, students test how objects float and sink in liquids of different densities.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

This experiment will evaluate if the environments that people work in affect their speed and accuracy in performing mental tasks.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

High school students recreate Michael Faraday's experiment in this cool science fair project that induces current in a coil of wire.

Evaluate gender differences in processing visual information.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

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

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.