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

This Louis Pasteur biography goes over his accomplishments, and includes a bacteria-based science activity at the end!

Ever wonder what the earth is made of? Help your little scientist to examine the different types of soil particles with this worksheet.

Kids will cut out the various functions listed at the bottom of this kidneys and intestines worksheet and match them to the correct organ.

Searching for a worksheet that will give your kid help with their science? This printable will challenge her knowledge of birds.

Test your child's science savvy with this worksheet, which asks your child to identify what items are made from plants.

Help kids understand the size and scope of billions of years with this helpful reference worksheet.

Budding botanists can master the different parts of a seed with this helpful diagram!

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

Dig in to the layers of the earth with this science coloring page!

Our solar system might fit on this cool coloring page, but in reality it's 3.7 billion miles from the Sun to the dwarf planet Pluto!

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

Bug out on some insect anatomy! Can you name each part of the insect? Try making an educated guess by using what you already know about animal body parts.

Has your child learned about the life cycle of a frog in school? Test his understanding with this cute cut and paste worksheet.

Studying human anatomy? Here is a great sheet that shows a diagram of all the muscle system. Your child will learn the scientific terms of the major muscles.

If your child is fascinated by outer space, he'll love this solar system word search! While reviewing planet names, he'll ponder the mysteries of the universe.

Children label the eight planets of our Solar System in this simple astronomy worksheet.

Next time you head outside for a hike or a camping trip, bring along this checklist of animal tracks!

In this recycle worksheet, kids color the different recyclable objects, then match them up with their corresponding bin. Try our recycle worksheet on Earth Day.

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

Discover the differences between gravity and magnetism in this forceful worksheet!

Learn all about your body's most important muscle: your heart! This simple diagram is a great way to introduce your little biologist to his heart.

Identify the appearance of the moon during its three main phases which include the New Moon, Quarter Moon, and Full Moon.

Children are introduced to the basic concepts of cloud formation in this diagramming and fill-in-the-blank activity.

Stem, primary root, secondary root … Let your kid dig into this colorful worksheet, and fill in the missing names on this tree parts diagram.

Is your child baffled by the scientific method? Dr. McSquare is here to help! Learn the steps by helping the doctor organize his lab reports.

Discover the difference between comets and asteroids in this stellar earth and space science worksheet!

Natural resources are crucial for sustaining life on the planet. Encourage your child to get to thinking about plants, one of Earth's natural resources.

This bright and colorful worksheet helps your child bring the technical terms of the bones in his legs down to size.

Can you identify the difference between inherited and acquired traits?