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

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!

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

Engineers in training can get started with this simple wheel-and-axle construction activity.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

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

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

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.

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

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.

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.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.