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The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Test ability to distinguish between natural and artificial aromatherapy oils. Select fragrance, natural and synthetic sample. Volunteers state preference.

Research hemispheric brain dominance in order to determine if you have a dominant side. Test foot, ear dominance. Record observations.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Study history of aerodynamics of arrow design to create a perfect arrow. Test arrows by shooting at an archery target.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

This experiment investigates whether the psychological phenomenon of the halo effect can be used to explain people's perceptions of others.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

This science experiment has students test whether a snail moves faster on concrete or dirt.

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

Test whether cutting up meats will make it cook faster than just cooking it whole.

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.

Research information on vitamin content in foods, Examine the effect of vitamins, test organic samples of fruits, meats, grains for vitamin content.

Design and build an invention inspired by Rube Goldberg's designs. Build your invention. Test the machine, write a detailed report.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Research active ingredients in anti-aging creams. Test skin creams on volunteers, document the effectiveness of the creams with before an after photographs.

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.

Devise list of randomly chosen words, test how many words volunteers can remember. Compare results of adults and children. Which have better memories?

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.