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Water Cycle Quiz

The water cycle helps to maintain the Earth's climate by transporting energy around the planet.

The sun provides warmth and light that is necessary for life on Earth. This energy travels through the atmosphere and warms the surface of the Earth. Some of this energy escapes back into space, while some is used to evaporate water from lakes, oceans, and other sources. When water vapor rises into the air, it carries with it the heat that was originally absorbed from the sun.

This process helps to cool down the Earth's surface temperature. As precipitation falls back to Earth, it brings with it new moisture that helps to regulate temperatures in different parts of the world.

The water cycle is usually portrayed as a simple circular cycle of evaporation, condensation, and precipitation. Although this may be an effective metaphor, the reality is considerably more complex. Water's pathways and effects in Earth's ecosystems are quite intricate, and their nature isn't completely known.

1What is the correct order of the water cycle?

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Water vapor, rain, cloud
Rain, cloud, water vapor
Water vapor, cloud, rain

2During what part of the water cycle does water vapor turn into liquid droplets?

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Run off

3What must happen to water vapor in order for it to turn into liquid droplets?

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It must be cooled
It must be pushed by wind
It must remain the same temperature

4How do clouds form from water vapor?

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Evaporation then run off
Condensation then precipitation
Precipitation then condensation

5The class created models of the water cycle in plastic bags. Which would represent the precipitation stage of the water cycle?

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The water droplets running down the side of the bag
The amount of sunlight heating the water
The water vapor at the top of the bag

6What would happen if less water evaporated from the oceans?

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Ocean levels would decrease and there would be less precipitation
Ocean levels would decrease and there would be more precipitation
Ocean levels would increase and there would be less precipitation

7Where does the energy that powers the water cycle come from?

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Electrical outlets
The sun

8What is the correct term for moisture that falls to the ground from clouds?

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9True or False: condensation is part of the water cycle.

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10What is the correct term for rising water vapor meeting colder air and turning back into water droplets?

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11What is the only thing in nature that can be a solid, liquid or a gas?

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12What are the drops of water that form on cool surfaces during the night called?

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13When gas changes to a liquid it is called __________.

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14Mark notices a puddle of water on his way home from school.The next day the puddle is gone.What most likely happened to the puddle of water?

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It condensed
It evaporated
It melted

15As time goes by, and water goes through the water cycle again and again, the amount of water on Earth__________.

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Stays the same

16The water that was around when many hundreds of years ago___________.

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Is the same water we use today
Is about half way gone
Would be really dirty if it were still around

17Once water makes it all the way through the water cycle,the water___________.

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Has finished that cycle and moves onto a different cycle
Starts to cycle over again

18An ice cube placed in sunlight melts quickly. Which best explains this event?

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The sun makes heat
The ice cube looks clear
The ice cube is a solid

19The gas form of water

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Water vapor

20The constant movement of water from Earths surface to the atmosphere and back to Earths surface

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Water vapor
Water cycle

21What is the process in which clouds let water go as rainfall called?

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22Which human activity can alter the water cycle:

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23How many steps are there in the water cycle?

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24Water vapor in the air gets cold and changes back into liquid, forming clouds.

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25How do plants intake water?

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By precipitation
Through leaves
Through roots

26When clouds get too heavy to hold water in the water cycle, what happens?

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The water falls to the Earth
The water evaporates
Another cloud forms

27What is tapped into when digging a well looking for water in the water cycle?

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An underground aquifer
An underground river
An irrigation ditch

28Which stage is NOT part of the water cycle?

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29Considering the water cycle how old could the water be in glaciers and ice caps?

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Millions of years
Billions of years
Thousands of years

30Condensation is when warm vapor rises, gets cold and does what In the water cycle?

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Gathers in clouds
Falls out of the sky
Warms up again

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