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Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Examine the effect of pressure on carbonation in soda.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

This science fair project investigates why the number of visible stars changes from place to place.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

This science fair project idea compares biodiversity between drops of water.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Discover which fabrics shrink the most in the wash and why.

This simple experiment serves as an introduction to the greenhouse effect.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

This basketball project explores the best way to make the perfect shot every time.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

The purpose of this science fair project is to build a basic radio.

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.