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This science fair project idea examines whether boys and girls differ in reflexes.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Construct and experiment with a periscope using reflected light rays to gather an image.

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

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

This science experiment tests if dog saliva can really help heal wounds.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Science fair project that determines whether mass and weight are the same or different.

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

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

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.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

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.