In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Learn whether writing things down really makes things easier to remember.

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

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

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Learn all about balance and motion as your child designs a corn maze!

This project examines whether playing music during class helps students learn or if it distracts students from learning.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

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

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.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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

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

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.

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

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.