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

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

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

This word search is all about owls! Your child will learn a few different species of owl as he looks for them in the word search.