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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.

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.