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How Water Gets Polluted and How to Keep It Clean

Bodies of Water: Freshwater, Saltwater, and Conservation

1st Grade·Science·Open Global Science

Updated 1 month ago · 3 views

Identify sources of water pollution, such as trash and runoff, and explain practical ways to keep waterways clean.

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Public learning track

Bodies of Water: Freshwater, Saltwater, and Conservation

1st Grade · Science · Open Global Science

7 lessons

Goal

Compare natural water bodies, distinguish freshwater from saltwater, and practice protecting and conserving water.

7 lessons

0 of 7 done

Earth's Water: Oceans, Lakes, and RiversUp next
Comparing Puddles, Ponds, and LakesNot started yet
Exploring Flowing Water: Streams and RiversNot started yet
Investigating the Salty OceanNot started yet
Sorting Freshwater and Saltwater HabitatsNot started yet
How Water Gets Polluted and How to Keep It CleanYou are here
Saving Every Drop: Simple Ways to Conserve WaterNot started yet

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Learning standards covered

OGS.2.ESS.2Open Global Science Standards 2026™ · 1st Grade

Observe and compare properties of natural bodies of water (puddles, streams, rivers, ponds, lakes, and oceans), distinguishing between freshwater and saltwater, and explaining the importance of water conservation and pollution prevention.