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Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

Think about the adaptive utility of an important aspect of our physiology.

This fun middle school science fair project idea helps student discover the concepts behind deep sea diving and how Cartesian divers work.

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.

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 fair project idea tests the efficacy of both synthetic and natural antibiotics.

Determine how good we are at direct and indirect observation.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

Science fair project that measures the relative times it takes a plastic bag and a biodegradable plastic bag to decompose.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

Get a cool science project idea on a photovoltaic cell and explore the various factors that affect the energy output of the photovoltaic cell.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

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

Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.

Science fair project that determines how we can change potential energy into kinetic energy.