Halloween Spirit Week!  (Oct. 24-31) Excelsior students will be jumping into the holiday spirit (Spirits! Yikes!) throughout this week. Monday, October 24:

Excelsior students! Be sure to check out the new Chess and Board Game Club. We will meet every Wednesday in the room

It all began with John Dalton’s atomic theory in 1803. What is the fundamental building block of matter, the atom, and what