describe a procedure to remove the water from the mixture that passes through the filter and collects in the beaker.

The procedure is Filtration

Explanation:

Filtration is a process that is use to separate insoluble solid from liquid for example Salt and water.

This process uses filter paper which is placed inside a funnel and then placed inside a beaker.

The mixture of sand and water is poured into the the filter paper and water then drains out down to the funnel and the beaker.

The solid part remain at the filter paper and it is called the residue and the water is the filtrate.

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.