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Should you use âFITâ Fruit and Veggie Wash or plain water to wash your produce? Find out in this science fair project idea.

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

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

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

Science fair project that compares tap water and bottled water for the presence of common impurities.

This science fair project idea produces varying pitches of sound.

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

Cleaning can be a chore, but not with this sudsy experiment!

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

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

The objective of this science project is to investigate patterns in fingerprints among family members.

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

Science fair project that helps visualize how the human brain functions by constructing a model of a brain.

The purpose of this science fair project is to learn which substance best preserves apples. Learn about enzyme interactions in fruit and scientific processes.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

The purpose of this science project is to determine whether the amount of air in a soccer ball affects how far it goes when kicked.

The scientific purpose of this experiment is to investigate which material is the best packaging for fragile items during shipping.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

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

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

Investigate which substances are most effective at removing salt from water.