01 12-2012 warm up – page 97

Warm Up – Page 97
Create two circle graphs (pie charts) representing your two charts. You can use the circles at your table to trace.
Where is the most freshwater on Earth located?
Is the source referenced in #2 commonly used by people for drinking, water lawns, etc.? Explain.
Where is most of the Earth’s water found?
Where is most of the Earth’s usable freshwater found?
What percent of all of Earth’s water is usable for drinking, etc.?
Groundwater 4 mL & surface water .7 mL = 4.7mL
4.7/1000
.0047
.47%

Total Water – make sure you label your types

Total Freshwater – make sure you label your types

What makes water so special?
Cohesion and Adhesion Lab
Question: How many drops of water can you place on the surface of a penny before it overflows?
Hypothesis:

Materials and Procedure
Materials
Penny
Cup of water
Dropper
Procedure
Drop water from the dropper onto a penny, counting each drop.
Examine the penny from the side after adding just one drop, when the penny is half full, and just before it overflows.

Data
Penny after one drop:
Penny when it was half full:
Penny just before it overflowed:
Person Number of Drops Table Average

01 12-2012 warm up – page 97

by Janelle Wilson on Jan 13, 2012

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