Here's a great worksheet for teaching your kids all about the planet Mercury. Did you know that it's the smallest planet in our solar system?

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

Plants may not have feet, but they do move! Help your child learn different ways seeds travel.

A coloring sheet of a Mars rover searching for life on other planets.

Third grader today, astrophysicist tomorrow! Let your child research their planet of choice, and discover everything from the number of moons to temperature.

Discover the inner workings of basic earth science in this worksheet on temperature.

Microscopes bring biology to life, allowing us to explore the world's tiniest living things. Have your child create his own organism in the sample slide.

The rainforest is a vibrant, lush place teaming with life! Your little nature explorer can take an expedition to find the many hidden animals in this scene.

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

Learn some new words and facts about precious minerals with this word-scramble and matching worksheet.

Fact: This worksheet is about unusual animals from all over the world. Opinion: This is the best fact and opinion worksheet ever!

How much does your child know about the animal kingdom? Help her discover interesting facts with this animal crossword.

Did you know that Uranus can get as cold as -144° Fahrenheit? Learn more about the third largest planet in our solar system on this planet printable.

Did you know that trees have more parts than just the trunk, branches and leaves? Take a look on the inside of a tree with this fill-in-the-blank diagram!

Ever lay on your back to watch the clouds? With this cloud chart you and your little scientist can identify the different types of cloud formations.

Cave formations come in all kinds of shapes and sizes; get the scoop on common cave formations with this two page printout with a maze and vocabulary.

What is the Earth? Here is a reading passage and a word search to help your kid get acquainted with Earth science.

This worksheet tests kids' understanding of basic heredity by asking them to match parent turtles with their offspring based on similar traits.

Lots of people like turtles, but how much do you really know about them? Get to know one of many types of turtles with this informational worksheet.

Learn about the animal practice of hibernation in this quick science worksheet.

This tree anatomy worksheet will give your little naturalist a better understanding of the parts that make up a tree.

Our silkworm facts help your little one understand more about these special invertebrates. He'll read about their life stages and answer some questions.

Did you know some baby birds take 10 days to hatch, and some can take 80 days! Learn all about these cute creatures and finish your lesson off with a fun maze.

How much do you know about our solar system's planets? Kids learn facts about Neptune in an out-of-this-world worksheet.

Did you know that an elevator is actually one of the six simple machines? Help your child understand how the pulley works.

Can you tell which types of weathering caused each of these changes in the earth? This activity is a great way to review the 3 main types of weathering.

Learn about the California tiger salamander, which uses its toxic, bad smell as a defense.

This helpful worksheet lays out all the qualifications for planethood. A great way to start studying outer space science!

How do you make recycled paper? Learn all about the recycling paper process on this informative worksheet.

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.