Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

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 activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

This science fair project teaches students about wilting and browning of salad greens.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

How powerful is the reaction between baking soda and vinegar? Find out here!

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.