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.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project idea explores whether color affects a person's emotional state.

This science fair project idea investigates if fats add to the flavor of food.

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

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

This science fair project idea explores which fruit molds the fastest.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

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 explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

This science fair project will help students learn about non-vascular plants, such as mosses.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Demonstrate how to tell the age of an egg without having to crack it open.

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

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

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

This science fair project examines how seeds hitchhike on animals and clothing.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

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

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

In this science fair project you will make a model of a cell membrane using very simple material.