Track the traits passed down from parent to offspring!

Find out how scientists explain our yawns and use the graph to keep track of your family's yawns for a whole day!

Track down some of the most famous animals of the Amazon -- and other places -- with this rainforest coloring page that doubles as a life-science lesson.

In this North American animal tracks worksheet, students hone their observation skills by matching tracks to animals.

Children familiarize themselves with the tracks of a duck, bobcat, coyote, deer, raccoon, and black bear in this life sciences worksheet.

Children learn to identify the tracks of a pine marten, chipmunk, mountain lion, mountain goat, and grizzly bear in this matching worksheet.

Children hone their observation skills by matching the tracks to their corresponding water animal in this worksheet.

Your child will write about his or her favorite animal. Kids will research their favorite animals online or at the library, then write down three facts.

Does your second grader love farm animals? This easy writing exercise will help your child be more observant about tracks left by some familiar animals.

In this worksheet, children practice identifying animals of North America by their tracks.

Help your 2nd grader write out fractions in this underwater adventure.

Ocean resources are an incredible part of how we live our lives; read and write about them with this worksheet.

Read the definitions given for soil, sand and dirt then write down where each element can be found below the pictures.

Read the definitions of soil, sand and dirt then write where you can find each type below the pictures. Nurture your budding geologist!

What's your favorite animal? Kids love answering that question, and with this animal research graphic organizer, they can write all about it.

Let your child put her thinking cap on and take a moment to write about the influence people might have had on the formation of landforms.

Encourage your child to take a nature walk, using the prompts on this worksheet to write and draw their observations of plants, animals, sounds, and more.

Is air a natural resource? You bet! Air as a resource carries oxygen, which we need. Read and write about ways air quality can be affected.

Kids write down examples of solids, liquids, and gases in this 1st grade physical science worksheet that focuses on the states of matter.

Children get to know animals of South America in this nature-themed worksheet.

Warm up your scientific thinking with this colorful worksheet!

It's never too early to start teaching your kid about eating right and staying active.

Read about a little-talked-about bird that inhabits the wetlands of Yellowstone National Park, the sandhill crane.

Teach your child how we measure temperature with these printable thermometers!

Investigate the traits you inherited from your mother and father in this worksheet!

The horned lizard has a scary exterior but a gentle personality. Your little student can learn about this North American lizard with this worksheet.

Here are four examples of mineral resources for kids to think about, plus a short explanation of what a mineral resource is.

Children hone their powers of observation using this worksheet template.

The grizzly bear once roamed across most of North America; now its habitat has shrunk to the northwest. Discover more about the grizzly with this worksheet.

Children match animals to their ecosystems in this life sciences worksheet.