Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

In almost every preschool classroom is a sensory table. Learn how to make one at home!

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

In the mood for a bit of silly science? Help your child create a truly one-of-a-kind planter out of a potato head!

Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

Help your little one figure out the differences between the worlds of air, land and water, a huge step in understanding how our environment works.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

Recycling may be a confusing concept for your little one, so take the time to teach them the magic of compost - right in your own backyard!

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

Help your child learn about animal classification with this fun and delicious activity.

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

This activity allows your kindergartener to translate what they observe into a beautiful poem.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

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.

This project explores the interaction between air pressure and playing surface in determining a basketballâs bounce.

Make sourdough bread...and learn some colonial history and modern science in the process!

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

Make an edible play dough with your child to help her develop her sensory and motor skills.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.