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Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

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

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

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

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Kids grow sunflower greens from seeds for a hands-on gardening experience in this kindergarten life science activity.

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.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

Using a glass fishbowl, you and your kids can create a low-humidity, open-topped terrarium perfect for easy care, drought-tolerant succulents.

Here's a science activity to help your child investigate how seeds are designed to travel.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

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

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

This science fair project idea experiments with spinning color wheels and optical illusions.

Make a bear cave for your child to play and explore, learning about bears and winter hibernation.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

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

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

This fun activity makes use of pasta shells, paint, and glue make a crab while your child learns about this unique creature.