HEAT grows from seed sown in the ground. When it first comes
up, it looks like grass, but after a time a strong stalk rises above
the green leaves, and out of the end of this stalk grows a head of wheat.
The head at first is soft and green, but when the summer heat has made
it ripe, it is hard and full, and has a golden color. When the wind blows
over a field of ripe wheat, the tall grain bends in long waves, until the
whole field looks like golden waves. When the wheat is quite ripe, it is
cut down and tied into small bundles called sheaves, and left to dry in
the warm sunshine. Then these sheaves are piled into large stacks to keep
it safe until they are ready to be threshed. It is then put into a large
machine, called a thresher, and all the grains are separated from the stalk.
The stalk is straw, and the shell which was around the wheat is chaff.
After the grains are cleared of the straw and chaff, the farmer takes it to
the mill and it is ground into fine white flour.