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Many substances are compounds of different elements. This experiment combines iodine and zinc to make zinc iodide.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

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.

Kindergarten algebra is a lot different than high school. In kindergarten math, algebra means grouping like things, or noticing what doesn't belong in a set.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Science fair project that explores the phenomenon of Non-Newtonian fluids by exerting force on different materials.

How does light affect plant growth? Do different colors of light work better than others? Find out in this classic science fair project idea.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Which bread molds fastest? Explore the different kinds of breads and how quickly they mold, along with the role of preservatives.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

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

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

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

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

This project compares the national anthems of several different countries to determine if there is a correlation between tempo and a country's latitude.