Any form of water that falls from the sky. Examples : rain, snow, sleet. hail
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10
The side of a river is called the.... The bottom of the river is called the ______bed
bank / bed
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10
What is the largest river in the world
The Amazon
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Where Rivers start from?
mountains.
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10
What are the 3 main processes in the water cycle?
Evaporation, Condensation, Precipitation
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10
Explain evaporation.
When the sun heats up the water in the oceans, rivers, lakes, the water evaporates and turns into the gas called water vapour.
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10
What are meanders?
Wide S-shaped bends
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What type of energy controls evaporation and condensation?
heat energy
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10
Human causes of water pollution are ....... 3 examples
sewage, pesticides and fertilizers from farms, waste water and chemicals from factories, silt from construction sites, and trash from people littering.
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10
What is a dam and why do we build it?
We build a dam to stop the flow of river. Water is collected and held in a reservoir. we use them for crops, drinking water, and hydroelectric power.
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10
Explain how a waterfall is formed.
River flows over hard rock - Soft rock will erode forming a small step - more soft rock erode, larger step - eventually leading the the formation of a waterfall
