SvS Biology and Junior Science
In
this experiment you are going to investigate the change in appearance of
footprints made under several different circumstances and see if they can be
used to help solve a crime.
You
will need a sandpit, a rake,
a measuring tape or metre ruler,
a heavy bag and a volunteer.
For
each trial, record the average distance between steps and their appearance
in a table of results, and any other observations such as the depth of the
print. Between each test, the sandpit should be raked. The same
volunteer is to be used for each test.
The
tests:
1.
Walking across the sandpit
2.
Jogging across the sandpit
3.
Sprinting across the sandpit
4.
Limping across the sandpit
5. Carrying a heavy bag on your back
6. Carrying a heavy load in-front of you
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S. van Strien