Learn the ins and outs of one of the body's most important organs: the heart!

Kids follow corn as it grows from seed to vegetable on this simple cut-and-paste growth chart.

Help your 2nd grader crack the code using triple digit addition and subtraction to find out what parts of camels can be used to make some tasty dishes.

This Rhode Island state bird coloring sheet features a popular breed of chicken.

Which of these animals do not belong? Explore the plants and animals of the rainforest, and choose which ones are in their right habitat.

So what on earth is this funky creature? He is a Louisiana Pancake Batfish, one of several brand new species discovered within the past two years.

Walter's Duiker is a new species of duiker, a kind of antelope, and one of many new species discovered between 2009 and 2011.

Kids need lots of things to grow up healthy and strong, and plants do, too! Can your child think of things a plant needs to grow?

Discover the function and parts of the human skeleton with this introductory diagram.

Budding paleontologists will refer to a word bank to identify 10 dinosaur-related vocabulary words in this playful word search puzzle.

What are the different types of animal body coverings? Help kids sort and categorize these animals based on their body coverings.

This science vocabulary activity is packed with basic science vocabulary words to help the youngest kids warm up to scientific concepts.

"The hip bone is connected to the...?" Sing the song perfectly with the help of this worksheet on the skeletal system!

Meet the residents of the Rocky Mountains with this set of finger puppets that features a cast of Rocky Mountain animals.

Test your knowledge of prehistoric animals with this life sciences crossword puzzle!

The Pennsylvania state bird, the Ruffed Grouse, is medium-sized and lives in the Appalachian Mountains. Learn more fun facts and add color to bring it to life!

Did you know that insects like dragonflies have life cycles that are very similar to our own? Help your little scientist get to know the circle of life.

Which of these animals does not belong? Explore the plants and animals of the desert, and choose which ones are in their right habitat.

Did you know new species of animals are discovered every year? Color in this little cricket, the only one of his kind who can pollinate plants!

This lizard can grow to over six feet long! Color the Golden Spotted Monitor Lizard, one of several brand new species discovered between 2009 and 2011.

Learn the scientific names of this popular flower and its partner, the grasshopper, with this fun coloring sheet!

Before trees grow into trees, they start out as little seeds. Can your child match the fruit and seeds with the trees (or plants) they came from?

Did you know people can live with just one kidney? Get a head start on human anatomy with this info sheet on kidneys.

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

Here's a fun way to review photosynthesis with your child! She'll show off her science knowledge as she answers questions to complete the crossword puzzle.

If you're taking a trip to the aquarium any time soon, be sure to print out this Aquarium Passport to bring along!

Little biologists will use this respiratory system diagram to identify the most important parts of the human respiratory system and their functions.

Color the T Rex Leech! Named for its sharp teeth, he is one of many brand new species discovered in the past two years.

Practice identifying living and nonliving things with this first- and second-grade science worksheet!

How do seeds get planted by nature? Find out how the plant life cycle is helped along by natural processes like wind or water.