Chemistry 12: We started by making 600 mL of 0.1 M NaOH for lab 20G. After completing a Review WS (U4 # 25-30), we prepared lab 20G (objectives 1,2,3 only). We also spent a little time completing Lab 20B, which is due Friday without a conclusion. The second half was spent learning about Ka and Kb. We took brief notes, then read section 4.8 and 4.9, and completed # 31-37 - these are also due on Friday.
Science 8: We began with a short review of transparent, translucent, and opaque materials. We completed textbook work on waves and plane mirrors. In the second half we did a short lab on Convex and Concave mirrors that shows us how the focal point is found and how to measure the focal distance. WE also used concave mirrors to cast an image of Crusty the Clown. Images from concave mirrors, if the object is far away, are always inverted, small, and real. Use the back of a spoon at home to find out what your image is like in a convex mirror.