Is it a square or a circle? See if you can trick your friends with this zany science project!

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.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

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

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

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!

This science fair project examines how seeds hitchhike on animals and clothing.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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

Help your child plant a "tea garden": a garden made of herbs for making teas.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

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.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

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

Instead of the traditional egg hunt, try this creative variation that will result in a beautiful Easter garden.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

This science fair project idea investigates whether air has mass and weight.

The science project fair idea explores the interaction between your nose, mouth, and brain when tasting a new food or drink.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.