Vocabulary - Earth'S Water Resources

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Date
Vocabulary
STUDENT RESOURCE 4.1
INFORMATION SHEET
desalination the process of obtaining
fi ltration the process of cleaning water
fresh water from ocean water by
by passing it through layers of sand and
removing the salt
gravel
One method of desalination involves
Filtration can remove solid particles
heating water until it evaporates, which
from water but does not remove
leaves the salt behind. The water vapor
bacteria.
is cooled and the condensed fresh water
is collected.
WEATHER AND WATER • SECTION 4 EARTH’S WATER RESOURCES

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