This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

Tin can phones offer something modern versions don't—a fun project to make with a friend, and a dramatic illustration of vibration and sound waves.

Make a periscope with milk cartons and mirrors! This preschool activity is great for playing secret agent and learning simple physics.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

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

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

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

It's a rare kid who doesn't like a sandbox. Next time you're out digging, build in some earth science, too.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Follow in the footsteps of movie character legends as you walk your little one through the steps of becoming a junior archaeologist.

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

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

Use natural materials to try out a new kind of weaving. Your child will enjoy gathering their materials outside and then using them to create a piece of art!

This classic children's game demonstrates how sound travels through air vs. through a solid.

Your child will create an adorable Christmas tree from their footprint and practice counting while decorating their tree with objects of a variety of textures.

Take a closer look at the soil that surrounds us, and give your child a lesson in Geology 101!

In this design challenge, your child will use building bricks to create a funny face. The activity instructions include question prompts thta can help guide your child through the creative process, and promote their problem-solving skills.

This crafty activity provides a hands-on way for your child to illustrate how the trees look during each season of the year.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Make this easy composting dessert and then enjoy the yummy results!

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

Here's a pressed leaf card project that puts science and writing together for your second grader.

Your preschooler is familiar with the colors in their crayon box, but can they find these colors in the world? Take them on a scavenger hunt to find out!

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

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.