Reef Activities - page 35

Margarine
container
Large grains
1 °Otitis = 100%
1 00mls = 100%
NOW RECORD THIS
NOW RECORD THIS
4
VALUE IN THE DATA
VALUE IN THE DATA
TABLE
TABLE
50 mis = 50%
50 mis = 50%
3.
Now seive this 100 mis of dry sand through the sand seive into the margarine container. A little
shaking may help.
4.
Now take what remains in the seive (the big sand grains) and pour them back into the measuring
cylinder and record the number of mis in the data table below. This can now be regarded as a percent.
1...,25,26,27,28,29,30,31,32,33,34 36,37,38,39,40,41,42,43,44,45,...74
Powered by FlippingBook