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In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

Determine whether cats have dominant paws. Observe which paw cat uses to reach for treats, feather, and string. Calculate percentage for two paws.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

In this experiment two environments will be compared: a room with interior design that uses correct Feng Shui versus one with incorrect Feng Shui.

This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

This science fair project explores discover whether the acidity of sour candy is comparable to that of battery acid.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.

This experiment evaluates whether a person's eye color affects their ability to identify colors in low light.

Does nail polish really slow the growth of nails? Explore in this science fair project idea.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

In this science fair project, students will learn how to calculate the formula for the thermal decomposition of potassium chlorate.

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

This science fair project idea examines the differences between bottle water, filtered water, and tap water.

This experiment investigates whether there are certain sounds that affect men and women differently

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This science fair project idea compares the cuteness reaction between genders.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.