One of the most famous and easy to spot constellations is the Big Dipper! Formally known as Ursa Major, this constellation was named after a bear.

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

Construct your own map with this hands-on science worksheet for second graders!

Understand nature's visual cues for the shifting of the seasons with this tree seasons match-up activity!

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

Blue whale facts include that calves weigh up to three tons at birth and adults can be as heavy as 200 tons. Get other cool blue whale facts on this worksheet.