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Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

This science fair project idea examines which type of insulation holds in the most heat.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

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

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

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

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

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

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science fair project idea determines the most effective method of preserving food.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

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.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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

In this experiment you will replicate the mummification process by making a hot dog mummy.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Find out which kind of bubble wrap fares best when put in impact.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

This project examines whether people's taste perception is influenced by what they see.