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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.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

In this science fair project, students make their own rain gauge to measure rainfall.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

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

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

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.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

This science fair project idea explores the egg's thin membrane.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

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

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This science project allows students to study the psychology of happiness.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.