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.

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 determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

Test the placebo effect in different groups of people.

Explore whether pianists have the tendency to type faster than non-pianists.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

This surprisingly good glue recipe comes from common kitchen items.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

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

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Many substances are compounds of different elements. This experiment combines iodine and zinc to make zinc iodide.

This experiment provides a graphic illustration of the chemical reaction that occurs when you activate a hand warmer.

Test your friends to find out if you can replicate the placebo effect's incredible results.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

In this science fair experiment, high school students determine if all proteins denature at the same temperature.

Make a backbone model to explore human anatomy and life science.

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.

Learn about the right-hand rule for magnetic force! Use a cathode ray tube in this physics experiment to see a magnetic field's effect on an electron beam.

This science fair project idea discovers the principle of conservation of mass.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Here's how you and your teen can stage your own formal debateâbeyond arguing why chores are unethical! Formal debates improve teens' critical thinking skills.