Students will observe, record, and compare the amount of the earth's surface …
Students will observe, record, and compare the amount of the earth's surface covered by land and by water. They will also discuss the difference between fresh and salt water.
Students will define potable and non-potable water, depict an illustration of the …
Students will define potable and non-potable water, depict an illustration of the water treatment cycle, and identify problems with treating dirty water.
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