Discover the many different kinds of conifer and deciduous trees as you complete this word search!

If you know what each planet looks like, you'll have no trouble with this intergalactic crossword puzzle.

Pigs, cows, and ducks, oh my! The clues in this animal crossword puzzle worksheet will help you remember what animals there are on a farm.

Did you know that invertebrates don't have backbones? Find out some different types of invertebrates with the clues in this crossword puzzle.

In which habitat could you find an arctic fox, a polar bear, and a snowy owl? Have your kid find tundra animals with this word search worksheet.

In which habitat could you find a blue whale, a squid, and a shark? The ocean, obviously! Have your kid find ocean animals with this word search worksheet.

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Did you know the surface of the Earth is always changing? Learn about the events that change Earth's surface with this crossword puzzle for second and third graders!

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.

Earth has many different land and water features—can you recognize them? Test your knowledge with this crossword puzzle for third and fourth graders!

As your child matches up the body systems vocabulary with the correct definitions, she'll boost her life science knowledge and have fun doing it!

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.

Test your knowledge of prehistoric animals with this life sciences crossword puzzle!

Children put their science vocabulary to the test with this engaging crossword puzzle!

Kids find forest animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

Kids find grassland animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

Break down a word to create new ones with this fun worksheet for second through fifth graders!

Put your kid's observational skills to the test with this word search that will help her learn some of the animals that inhabit a rainforest.