Who said astrophysics had to be dry? Explore some of the amazing images of the Universe and related science produced by spacecraft and telescopes in games of Universe Concentration. It's the long-time favorite with the latest and most mind-blowing graphics!

Build your vocabulary with Word Searches that use the Glossary of the Teacher's Guide in an interactive format. Find the word--see the definition--learn the meaning--ace the SATs--appear on game shows--win big bucks! Word Search 1 Word Search 2 Word Search 3 Word Search 4

"Put it all together" with a series of SLIDER puzzles.