A little history of science info: In 1977, the last natural case of smallpox was discovered in Merca district, Somalia. The World Health Organization considers Smallpox to have been eliminated by vaccination, a spectacular success.  Later this year, both 6th graders and 7th graders will study some infectious diseases.

homework for tonight:
7th graders: none
6th graders: study for test tomorrow; short review sheet passed out in class today. Review the long form study guide answered in class today.  NOTE: when determining volume, remember you have two methods:
1. Measurement and Calculation: use this with a regular solid of any size.  For a rectangular solid, measure and then multiply: V = L x W x H.  Other regular shapes have different formulas.  Ex: volume of a cylinder V =  π x r²  x H, where  π is read as Pi.

2.  Water Displacement - if the shape is irregular, dip it in water.  You start by measuring the starting volume, then dip your irregular shape into liquid fo tind the final displacement. From final displacement, subtract the starting displacement.  The displacement (difference between final volume minus intitial volume) is equal to the volume of the solid.