Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

Learn whether writing things down really makes things easier to remember.

This science fair project idea examines whether people can decode scrambled messages.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

Check out this fun high school science fair project idea to investigate how the cell membrane regulates what moves into and out of cells.

In this experiment you will evaluate whether praise improves athletic performance.

This experiment evaluates whether motivational music can improve athletic performance.

We're all familiar with the idea that some songs âget stuck in your head.â This experiment explores the validity of that claim.

Looking for a project on fossils? Check out this fun science fair project idea to understand the process of coal formation and fossils part in that formation.

This science fair project idea investigates whether plants can survive being frozen.

In this activity, your child will be challenged to make a tower using paper cups.

This experiment will test whether people are better auditory or visual learners and if there is a link between gender and either of these learning types.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Looking for a fun earth science project on continental drifts? Check out this fun science fair project idea to explore how Pangaea may have broken up.

In this science fair project, students investigate how different colors influence appetite.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

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

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

This science fair project idea identifies and understands adaptations in birds.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

This experiment investigates whether smell can be used to enhance test subjects' memories.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.