The Earth is very much alive, even its rocks shift and change. Practice geology vocabulary with this challenging word search.

Invite spellers on an inter-stellar adventure with this fun word scramble puzzle.

Here's a fun way for kids to review their knowledge of earth science terms. Challenge your child to give a definition of each word as he finds it.

Find a definition of what "natural resources" are, and complete the natural resources word search. It's a good vocabulary warm-up!

Where do flower babies come from? Find the answers in this word search about plant reproduction!

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.

Let your kid's knowledge of leaf vocabulary climb as high as a tall, tall tree with this fun word search.

Where to flower babies come from? Use this word search to learn about the different pollinators in our environment, and how they help spread plant seeds.

Don't let your kid bark up the wrong tree! Engage him in a word search filled with tree terms, boosting his attention to detail and problem solving skills.

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

Boost your second grader's knowledge of space with this fun worksheet, which will have her unscrambling the answers to planetary trivia.

Searching for a worksheet to help your fourth grader with science? This printable will help him practice astronomy vocabulary.

Children get to know a few geology terms in this landform word search puzzle.

Let your child explore the vocabulary associated with Earth's landforms with this colorful word search.

Confused about continents? Get better acquainted with all the continents on earth with this word scramble.

This word search introduces your child to important rocks and minerals vocabulary, as it strengthens his attention to detail.

In this word scramble, children solve a riddle by identifying which things are made of plants and which are not.

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

Did you know that there are forests in the temperate ocean ecosystem? Learn all about the temperate ocean with this fun ecosystems sheet!

Challenge your child's knowledge of astronomy with this space-themed worksheet, which focuses on the timing of cosmic events.

Practice geology vocabulary with this challenging crossword puzzle.

Nature is all around us! But how much does your child know about our natural world? Test her knowledge with some nature fun-facts trivia.

Here's a great introduction to five famous astronomers for kids. See who got the star party started with this worksheet.

There are lots of stories around the world for the rabbit moon: a rabbit image seen in the shadows on the moon's face. Here's one for young moon-gazers!

Experience some explosive earth science! Use this diagram to teach your child about the various parts of an active volcano.

Quiz your little scientist on his knowledge of the soil layers! He'll be reviewing some important earth science concepts and key terms.

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.

Discover some fun facts about the sun — and bring it to life with color — with this astronomy worksheet!

Searching for a worksheet that will help your child practice their reading skills? This printable uses life science as a background to help young readers.

A fun challenge for kids, this Earth Day crossword puzzle is a great way to review facts about the Earth and get a reminder on how to live green.