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

What is the purpose of a narwhal tusk? Explore some interesting new findings about the narwhal, also known as the unicorn whale.

Learn the ins and outs of one of the body's most important organs: the heart!

This Louis Pasteur biography goes over his accomplishments, and includes a bacteria-based science activity at the end!