Crater Counts
1.
(10 points) Find a single grid square
at the center of each
of the following features.
Record
the central
latitude
and
longitude
of your square and count the number of craters there.
Surface Feature
Central
Latitude
Central
Longitude
No. of craters
The tall volcanoes in the
Tharsis region
The huge, deep Hellas
impact basin in the south
The gigantic Valles
Marineris canyon
The icy North polar cap
For the next section of the lab, you will be working with your classmates to examine the entire
surface of Mars and look for patterns.
Your instructor will compile a big table that you and your
classmates will work together to complete.
2.
(10 points) Pick at least
four
delineated portions on the maps to
identify
and
count
craters.
a.
Before you start work on a new portion, check your instructor’s big table to avoid
repeating another group’s data.
b.
For each portion you examine, enter the
latitude range
,
longitude range
, and
crater counts
in the table below.
c.
After each row you complete in the table below,
report your
data
to the
instructor to update the big table.
Latitude Range
Longitude Range
Counts
