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

This science fair project idea produces consumable fresh water from salt water through desalination.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Construct batteries that make electricity from fruits with this fun science fair project.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

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

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

The objective of this science fair project is to observe the properties of friction and apply this knowledge to search for a near-frictionless surface.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

Find out whether matte or shiny nail polish lasts longer.

This first grade science activity is great for winter! Your child will grow and observe her own amaryllis bulb, keeping a journal of her scientific findings.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

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

In this project students determine which instruments composers use to create birdsongs and birdcalls in classical music.

Free science fair project idea examining how different types of water affect plant germination and growth.

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

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Study history of aerodynamics of arrow design to create a perfect arrow. Test arrows by shooting at an archery target.

Research fruits and their ripening stages, follow and document the different stages. Analyze what causes fruit to continue ripening after being picked.

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

This experiment explores whether music affects the growth of bacteria and could help figure out better ways to process sewage and other microbe-assisted duties.

Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework

This experiment will explore whether adding different substances to a gel affects its strength.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.

Celebrate Dia de los Muertos by baking pan de muerto. In this 5th-6th grade activity, your child will explore another culture while learning about baking.