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What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Study science with your first grader in this arts and crafts activity that models the reason why fall leaves change color with some paint and crayons.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

This super fun science project, perfect for young children, combines crafts, dressing up as animals, outdoor play, and life science learning.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

This biodiversity project examines the biodiversity in your own backyard.

Children use their design thinking skills and powers of observation to create and construct a bird nest.

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

Make a kindergarten "discovery table" that reinforces both science and writing skills. Here's how:

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Help young learners discover why catÃs eyes glow in the dark with this simple experiment

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

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

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

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!

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

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

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

Build a bird feeder science craft that brings birds to your yard, and a smile to the whole family's face.

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled materials.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

In this experiment we will be determining whether birds prefer certain colors of seed.

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

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.