A social science article explains facts and ideas. Photos and captions support the text or add details.
Only 3 percent of Earth’s water is fresh water. Fresh water is an important resource that we need every day.
Water in rivers, lakes, and streams is fresh water.
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As you read, remember to clarify any words or phrases you find confusing. Use context clues to help you figure out the meaning.
YOU READ
Most of Earth’s water is salty ocean water.… Only 3 percent of Earth’s water is fresh water.
YOU THINK
What does fresh mean here? It must mean “not salty.” Only 3 percent is not salty.