This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

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.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.

This experiment evaluates whether there is a relationship between grade point average (GPA) and dating status.

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

Help your middle schooler improve his observation skills by playing this simple observation and spatial memorization game.

This experiment will explore the possibility of creating an infinite object by hand.

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

This project explores the interaction between air pressure and playing surface in determining a basketballâs bounce.

This experiment will explore if a randomly iterated algorithm will result in a pattern.

This experiment will explore if and where fractals can be found in the natural world.

Air resistance is a crucial factor when designing a parachute. In this science fair project, students find what type of material works best as a parachute.

Science fair project that determines which foods and drinks contain the highest amount of glucose.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Using a toy race car kids create a visual model of the Doppler Effect.

This interactive project invites science fair-goers to participate in examination and recording to demonstrate the importance of firsthand observation.

In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.

This project uses toy cars to determine how friction and gravity affect cars and braking.

In this experiment we use Scotch Guard to make sand that resists water.

In this project children practice the scientific method while playing with puffy paint.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

In this science fair project, students test how objects float and sink in liquids of different densities.

This experiment will explore how manipulating a graph of historical information might reveal new information about data.