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Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

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.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

This science fair project idea produces varying pitches of sound.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea examines whether boys and girls differ in reflexes.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

In this science fair project, students create their own miniature salt flats at home.

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

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

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

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.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

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

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

This project explores ways to prevent static electrical shocks.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.