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

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

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

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

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

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

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

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

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

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

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

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

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.

Here's a great early reading and science activity for curious children. Learn how to plant your child's name in seeds for a growing writing activity!

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

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

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

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.

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

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

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.