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1. CRATERS - Study the craters on the PICTURE you have of the
Moon.
Are the craters
from VOLCANOES or from IMPACTS of large
METEORITES?
Try DROPPING marbles into SAND (coarse
and fine) and FLOUR.
Compare the PICTURES with YOUR impact
craters.
2. SHADOWS - Try to find the HEIGHT of some craters from the
following exercise.
The Moon has a RADIUS of 1,750 km,
so draw an ARC of circle
radius 17.5 cm. DRAW in the shadow
chosen from your PHOTOGRAPH
SCALED to size and in the correct
position. MEASURE the HEIGHT of
the crater via the following method
m5-1.gif
Surface Of The Moon Showing A Crater And The Shadow It Creates.
3. LUNAR MONTH - Study TWO pictures of the Moon taken a FEW
days apart.
You know that the DIAMETER of the
Moon is 3,500 km so work out
how far the SHADOW has TRAVELLED
in the time between the
photographs. Now CALCULATE how long
it must take the SHADOW
to go all the way ACROSS the Moons
face. (The answer should be
14 DAYS or so.)
How long is the lunar
month? And how is this related to
the time the shadow takes to cross the face of the moon?
