**All: There will be extra help Thursday morning at 7:40 in room 3K2.
Section 11: Complete the assignment posted yesterday - these worksheets will help you study for Thursday's test.
Section 9: Complete today's lab, if you have not already. Also, study Chapter 3 for Thursday's test.
Section 10: Here is the data you need to complete the lab (this will help you study for Thursday):
-Station 1:
Cup of water mass: 81.2 g
Mass after a mouthful has been drunk: 24.7 g
-Station 2:
Mass of the chalk before you write your name: 45.73 g
Mass of the chalk after you write your name: 45.71g
-Station 3:
Mass of unknown metal + weighboat: 70.9 g
Mass of empty weighboat: 5.5 g
-Station 4:
Mass of unknown substance + weighboat: 89.5 g
Mass of empty weighboat: 5.5 g
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