What happens during evaporation?

The sun heats water and turns it into water vapor

How do plants add water vapor to the air?

Through tiny openings in their leaves

During collection, where does fallen water end up?

Oceans, lakes, rivers and underground

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Unit 4 — The Water Cycle

Science · Vocabulary Review

Evaporation.: The sun heats water in oceans, lakes and rivers, turning it into water vapor that rises into the air.
Condensation.: Water vapor cools as it rises and turns back into tiny liquid droplets, forming clouds.
Precipitation.: Droplets in a cloud combine until they are heavy enough to fall as rain, snow, sleet or hail.
Collection.: Fallen water gathers in oceans, lakes, rivers and underground, where the cycle begins again.
Transpiration.: Plants release water vapor into the air through tiny openings in their leaves.
Runoff.: Water that flows over the ground surface into streams and rivers instead of soaking in.

Know all six terms and the order of the cycle for Friday’s quiz.

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How the Water Cycle Works

Water CycleEarth ScienceVocabulary

6 flashcards · 10 questions · 6 matching pairs

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Step 4 · The Advanced Games, from a bigger worksheet

Unit 5 — Water Cycle & Hydrology

Earth Science · Vocabulary Review

Evaporation.: The sun heats water in oceans, lakes and rivers, turning it into water vapor that rises into the air.
Condensation.: Water vapor cools as it rises and turns back into tiny liquid droplets, forming clouds.
Precipitation.: Droplets in a cloud combine until they are heavy enough to fall as rain, snow, sleet or hail.
Collection.: Fallen water gathers in oceans, lakes, rivers and underground, where the cycle begins again.
Transpiration.: Plants release water vapor into the air through tiny openings in their leaves.
Runoff.: Water that flows over the ground surface into streams and rivers instead of soaking in.
Infiltration.: Water soaking into the ground and moving down through the soil.
Percolation.: Water slowly filtering down through layers of soil and rock toward the water table.
Groundwater.: Water stored underground in the cracks and spaces of soil, sand and rock.
Aquifer.: An underground layer of rock or sediment that holds and can release a usable amount of water.
Watershed.: An area of land where all the water drains to the same river, lake or ocean.
Sublimation.: Ice or snow changing directly into water vapor without first becoming liquid water.
Reservoir.: A natural or human-made place, such as a lake, where water is stored for later use.
Humidity.: The amount of water vapor present in the air.
Tributary.: A smaller stream or river that flows into a larger one.
Delta.: A landform of sediment that builds up where a river meets a larger body of water.
Estuary.: The area where a river meets the sea and fresh water mixes with salt water.
Floodplain.: The flat area of land next to a river that becomes covered with water during a flood.

Know all eighteen terms for the unit test.

A bigger worksheet, because a crossword or a word-scramble needs more terms than a six-word handout can give it. Same rule: nothing below was invented.