In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

This experiment evaluates how a diet that is rich in "mood-enhancing" foods affects the way people feel over several weeks.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Create an organic plastic product using vinegar and cream. Track decomposition over course of several weeks. Compare decomposition with traditional plastics.

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

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

Will male or female hair grow faster? Find out in this science fair project idea!

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

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.

see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

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

Will people still feel hungry once they eliminate grains from their meal? Find out in this science fair project idea!

In this science fair project, students evaluate if the phases of the moon affect the way people feel.

This science fair project idea creates an underwater habitat and explores the basic needs of living things under water.

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

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

This science fair project idea determines which flower lasts the longest.

This science fair project idea explores whether color affects a person's emotional state.

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