Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

Examine the presence of seeds in open fields. Collect seeds on socks by walking through open fields of grass or other growth. Germinate seeds on socks

Study how liquids separate into layers by creating a liquid gradient, different density liquids separate into layers in a graduated cylinder.

Check out this cool middle school science fair project idea to find the difference between organically grown and commercial brands of foods.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

Develop a new system for predicting geographic changes. Demonstrate the nature of geographic change. Make logical predictions.

Explore convex and concave objects and how they reflect light.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?

Science fair project that creates fog using bottles of hot and cold water.

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

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Examine the connection between temperature and chemiluminescence.

This experiment strives to determine if tracking of conservation habits will lead to reductions in a family's electricity and water bills.

Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

The objective of this experiment is to find out if cooked beans grow faster, if at all, than uncooked beans.

This science project allows students to study the psychology of happiness.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

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.