Amplify Science Unit 3 Ch. 2

What changes about an arch over time?

• Where the landform is located.

• The size of the arch changes.

• The rocks get larger.

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An illustration that shows how something works or what its parts are is known to be a.......

• landform

• diagram

• line plot

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What can make landforms change?

• rocks

• water

• wind

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When rock, soil or sand is worn down and moved from one place to another, we call that…

• diagram

• geologist

• erosion

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What can fast flowing water in a stream do?

• it can dry out

• it can move a boulder

• the stream doesn't do anything

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The shape of a landform changes when _______ causes pieces of rock to break off.

• rocks

• water

• animals

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Scientists base their ideas on evidence. If they gather new evidence that changes their ideas about how something happens, they ___________ their original diagrams.

• keep

• revise

• throw them away

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What happens when water hits a cliff?

• the landform never changes

• it gets cold

• tiny pieces of rock break off

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Scientists often have to think about things on a very different scale.

• true

• false

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Why do you think a valley can change? 

• valleys never change

• over time, wind and erosion can change the valley

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