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Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.

The objective of this experiment is to evaluate which types of people are most impacted by the McCollough effect.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Research basic components of vacuum cleaners, consult vacuum cleaner manufacturers for advice. Design vacuum with attachments that change automatically.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.

Research what is known about Alzheimer's disease and its treatment, and then prepare a script for television to educate the public.

This science fair project examines the different composition of fungi and plants.

This science fair project idea investigates whether rocks containing geodes can be determined from the outside.

Check out this cool science fair project idea to explore short and long term memory and whether there is gender differences in memory.

Compare the amount of ozone in various locations with this science fair project that will have your kid create her own ozone strips!

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

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

Take a dive into the candy jar with this yummy science experiment.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Experiment with fermenting various fruits, grains or syrups. Describe and illustrate the fermentation process in a detailed report.

Find out which part of a flame burns wood the fastest and also if this is true for all types of flames such as candle-flame, burners, and lighters.

Research fruits and their ripening stages, follow and document the different stages. Analyze what causes fruit to continue ripening after being picked.

This science fair project idea explores which fruit molds the fastest.

Research currently available fuel sources, and fuel manufacturing and processing techniques. Propose an alternative fuel source.

This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.

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

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This science fair project idea explores whether the types and brands of faucet filters are relevant to their performance.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.