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Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

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

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

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

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 compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

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

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.

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 science fair project idea investigates food preference of birds.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This fascinating science fair project explores eye color genotypes.

Think about the adaptive utility of an important aspect of our physiology.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Determine whether the relationship between a personâs armspan and height are genetic.

The purpose of this science project is to determine whether the amount of air in a soccer ball affects how far it goes when kicked.

The purpose of this science fair project is to learn which substance best preserves apples. Learn about enzyme interactions in fruit and scientific processes.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

The purpose of this science fair experiment is to investigate whether the color of your hair affects how much static electricity is carried.

Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.