This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

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

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

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

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

This experiment evaluates if a noisy environment makes it harder for test subjects to perform tasks that require hand-eye coordination.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

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.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

Find out whether putting something on top of a plant will inhibit its growth.

This science fair project idea explores the different properties of matter.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

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

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

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

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

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.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.