What better way to celebrate spring than with a fabulous flower party? Pack the day with fun flower activities and treats for a truly springalicious event!

In this project, waves of vibrations are experimented with using water in glasses.

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

Find out whether a longer airplane will fly farther or a wider paper airplane.

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

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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!

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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

In this project students experiment with making music using only glasses of water.

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

In this project children practice the scientific method while playing with puffy paint.

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

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.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.