This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

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 project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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

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

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

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

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

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

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

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

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.