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

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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

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

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

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

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

This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project idea explores how length affects the weight a bridge can hold.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

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 fun experiment provides a concrete and visually striking illustration of photosynthesis.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

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

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.

Examine the effect of pressure on carbonation in soda.

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.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

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

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

This science fair project idea demonstrates that plants give off water.

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

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.

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

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