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

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

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

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

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

This science fair project idea explores substances that cause a bubble to last longer.

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

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

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

This science fair project idea investigates how color affects temperature.

This project tests the hypothesis that dark colors absorb more heat than light colors.

The project determines which type of birds prefer which type of birdseed.

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

How well can people recall what they have observed. Test your knowledge in this fun experiment.

The project determines which laundry detergent is best for cleaning clothes.

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.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

The project investigates how friction affects motion by using different surface textures.

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

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

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