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GLOBE
Assessment
Grade 5-8
Literacy
Activity for Protocol Test
Identify one tree type at your study site.
Write each letter of the tree name on a line. This letter
should be the first letter in a word that describes the tree,
the study site, GLOBE measurements etc.
Densiometer
Protocol Test
The Air
Temperature protocol test assesses students' ability to construct
and use a densiometer.
Download
a Word  or
pdf 
copy.
Construction
& Use of Densiometer Protocol Test
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Student
activity & Level of Performance
+
appropriate student performance
-
inappropriate student performance
n.a.
not appropriate or not observed
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| Collect:
Tube
- 4 cm diameter 7 cm long
34
cm thread/floss
metal
nut/washer
tape
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| Construct
Densiometer |
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| Use
string & tape to form crosshair on end of tube |
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| Leave
some string hanging at bottom; use to tighten if strings
loosen |
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| Attach
both ends of 18 cm string with metal nut/washer across
other open end of tube |
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| Hold
vertically with metal nut/washer directly below the intersection
of the crosshairs |
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| Use
the Densiometer |
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| Look
directly up at canopy; record vegetation that touches
the crosshairs (+, -, Sky) |
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