What has two legs and carries its baby in a pouch? Fill in this crossword puzzle and learn some fun facts about two-legged creatures!

Investigate the mystery of why two tomato plants developed so differently!

This multi-page worksheet provides an opportunity for kids to practice both their understanding of food webs and their reading comprension skills.

Dive into the electrifying concept of electrical energy in this colorful worksheet!

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

Practice classifying different animals in this engaging life science worksheet, created for second and third graders!

Students practice classifying items as liquids or solids for a lesson on the states of matter in this fourth grade physical science worksheet.

Use this cool 2-page worksheet to make your own big dipper clock!

Match forms of energy to common examples in this third- and fourth-grade science worksheet!

Looking for a fourth grade worksheet to help your kid with science? This printable will help with your child's botany vocabulary.

Explore the strength of magnetic forces with this worksheet for third and fourth graders!

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

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

Learn more about two kinds of aquatic biomesÃfreshwater and saltwater biomesÃand how you can tell them apart.

Looking for a quick reference about gravity and a definition for kids? This two page worksheet and activity has you covered!

Unscramble key vocabulary words about energy and collisions with this engaging science worksheet!

Fly high with The Wright Brothers, two siblings who soared to the forefront of history with their design for the first modern airplane.

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.

Young astronomers unscramble words to reveal the heavens in this fun space science worksheet.

Uncover secrets of the past with this third-grade worksheet about fossils!

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

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

Do you know which animal has two humps? Your child will use clues to determine what animal name fits in the crossword puzzle with this worksheet.

These are the largest tortoises in the world, yet they are only two inches long when they hatch! That's one of the facts you can learn from this worksheet.

Kids learn important plant and animal cell vocabulary as they plug the words into their correct spots and complete the puzzle.

This worksheet is a quick-reference tool of space vocabulary for kids, with an exercise to use the words properly in provided sentences.

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