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

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.

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.

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.

Can you identify the difference between inherited and acquired traits?

Observe and record the weather with your kindergartener with this cute fill-in weather graph.

This moon phases worksheet offers a clear explanation of the lunar cycles. To teach your student the phases of the moon, download now!

Help your child learn about facts and opinions. Kids will read statements about animals before determining whether each statement is a fact or opinion.

Practice describing different objects and substances in this colorful worksheet!

Be a busy bee as you learn all about the different jobs honey bees have in their hives!

Discover the importance of butterflies in pollination with this informative worksheet!

Who will win the marble race in this two-page physical science worksheet?

Build nature vocabulary with this habitat-matching worksheet!

Can you and your child come up with a few ways to conserve water in your home? This printable starts you off with five ways to conserve water.

Learn to identify and name the parts of a seed in this two-page science worksheet and quiz!