Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

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

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

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

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

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

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.

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 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.

This science fair project idea measures and compares effects of chemical weathering, specifically carbonation, on different kinds of rocks.

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.

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

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

What happens when colored beams of light mix? You might be surprised.

Explore if planting seeds in a certain direction will affect how fast it germinates.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

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

With a clear bottle and a few plastic straws, you can easily make a hummingbird feeder and demonstrate the effects of atmospheric pressure at the same time!

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.

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