Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

This science fair project investigates which of two learning modes most commonly used in school, visual and auditory, is better for information retention.

In this science fair project, high school students will try to determine the mathematical patterns in JS Bach's two movement preludes and fugues.

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.

This experiment evaluates how a diet that is rich in "mood-enhancing" foods affects the way people feel over several weeks.

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.

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

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

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

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Create an organic plastic product using vinegar and cream. Track decomposition over course of several weeks. Compare decomposition with traditional plastics.

This science fair project idea studies the differences in gender perception between people.

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

This science fair project idea studies past and current fads and trends.

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

This science fair project idea studies how talking on a cell phone affect driving?

This science fair project idea studies whether a religious sleeping schedule relates to a higher IQ.

This experiment evaluates if personality influences whether a person prefers dogs or cats.

This science fair project studies whether DSLR and Point-and-Shoot cameras work the same way under all conditions.