PENNY LAB Reviewing how to conduct a lab

SET UP

Page 4 of your Science Notebook (from now on abbreviated NB)Title: Penny Lab

I predict that we can put drops of water on the penny before the water flows off. [write the preceding and make your prediction]

1. Materials

Construct 2-column Data Table Headings: trial #, # of drops

Calculate the average # of drops of water Show work: equation for average, plug in the numbers, underline average with units.

2. Procedure Drop water onto the penny one drop at a time keeping careful count of number of drops.

Need to drop water until the penny can’t accept any more—you will need to go “one-drop too far” and the water will actually need to spill over. One drop less than “spill over” will be your amount.

You need three good trials3. Data & Calculations

• ¼ cup water• Penny• Pipette

(dropper)• Paper towel

• Sample Calculation

= ___ drops of water

CLEAN UPPour unused water back into the pitcherPut pipettes back on counter (be sure there is no water in it)Put dry pennies back in the bagPut cups back on table—up side down on the paper towelsWipe up any spills and put waste in trash cans

FRIDAY SCHEDULE Advisory schedule—late start

Not going to advisory period—this is the schedule1st period2nd periodAdvisory time—go to 4th periodThere will be a practice evacuation drill during this time

3rd periodAll school lunch4th, 5th, and 6th