Sizing Up the Characters

Post a comment here to explain how you solved the problem. Tell what strategy you used and what steps you took. Be sure to explain any calculations that were necessary and include your solution.

Schoolhouse Rock Circulation Video

Here's a fun way to review what you've learned about the circulatory system.
http://www.schoolhouserock.tv/Do.html Click on "Watch this Video"

Spring Fever

I think I've caught Spring Fever! Do you have it too? What are your symptoms? Can it spread to others? Is there a cure or treatment for this ailment?