Do you know the functions of the primary organs in the human body? Put your knowledge to the test with this fourth- and fifth-grade crossword!

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

Meet the red wolf, an endangered species of animal that was once very common, but in the past 50 year nearly became extinct!

Introduce your student to an endangered species, Przewalski's horse, with this information sheet. They can color the illustration as they read.

Introduce your child to a fascinating new animal, the Baird's tapir. This is just one of many endangered species around the world.

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