Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Test whether plants can grow without sunlight and water.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This project examines whether people's taste perception is influenced by what they see.

Find out whether putting something on top of a plant will inhibit its growth.

This project determines what category of person is most likely to be ticklish.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

What combination of cloth and stain will be the easiest for removing stains? Test and experiment!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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

In this project, the affects of vitamin E are observed on a rose petal.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

This science fair project idea identifies clouds as a means of predicting the weather.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

This science fair project idea explores whether white light can be separated into different colors.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

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

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

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

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.