Separation methods Use the word bank in the box to fill in the gaps.
Distillation can be used to separate two or more liquids. The mixture is boiled
and the gas with the lowest
goes into the
first.
It
into a liquid and is collected. The other liquid is left behind.
Filtration is used to separate a solid from a liquid using a filter. The solid
cannot
in the liquid and it also cannot pass through the holes in
the
but the liquid can.

Asample of digestive juice was removed from the stomach of a pig. the juice was placed in a test tube along with some grains of wheat. a second test tube was set up containing an equal number of wheat grains, with distilled water rather than digestive juice. the test tubes were kept for 8 hours at 40 degrees c. after 8 hours, the grains inside the digestive juice had broken into tiny particles. the grains of wheat, in the water, were wet but otherwise unchanged. what is the control group?