Tuesday, October 28, 2008 - Block 4B

Handed back Quiz on Measurement and Density
Answered questions on quiz

Learned from yesterday. Went over procedure for measuring density of a liquid. Constructed data table. Told students to use the cup of water to rinse pipette and graduated cylinder after each liquid.

Asked students if there was any reason for pipettes to end up on floor or graduated cylinders to end up in trash. Didn't have the same problems as yesterday.

Had students work in pairs. I checked each liquid volume - sent most back.

Eventually students finished lab. When they finished, they worked on scientific notation worksheets.