Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

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

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

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

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.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

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

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

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