This science fair project idea explores how length affects the weight a bridge can hold.

In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.

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

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

This science fair project idea examines which type of insulation holds in the most heat.

Discover whether a metal will expand under hot water.

In this experiment we will be determining whether birds prefer certain colors of seed.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

Start your toy engines -- this is going to be a fast and friction-filled race!

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

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.

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?

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

This science fair project explores how osmotic pressure forces water through the root up into the plant.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!