What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

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

Science fair project that determines whether mass and weight are the same or different.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

This project compares the strength of one, two, and three-ply toilet paper.

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

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Examine the effect of pressure on carbonation in soda.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

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

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

This science fair project idea investigates if fats add to the flavor of food.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.