Water Cycle

Question 1

What is a cycle?

Answer 1

A cycle is a series of interactions in nature that repeat

Question 2

Why is it important for cycles on Earth to be sustainable?

Answer 2

It is important for cycles on Earth to be sustainable because this is how the Earth and living things maintain themselves

Question 3

How much of the water on Earth is salt water?

Answer 3

97%

Question 4

What are the three main processes involved in the water cycle?

Answer 4

the 3 main processes involved in the water cycle are: Evaporation, Condensation, Precipitation

Question 5

What is another name for the water cycle?

Answer 5

Another name for the water cycle is the hydrological cycle

Question 6

How can water evaporate even when it is not heated?

Answer 6

Watr can evaporate even when it isn’t hot because some water molecules have enough energy to jump from the liquid to the vapor state

Question 7

How much water does the average person in the United States use daily to support their life style?

Answer 7

2000 gallons

Question 8

The top level that water underground reaches is called the top of the …..?

Answer 8

The top level that water underground reaches is called the water table.

Question 9

All the area full of water underground is called the…?

Answer 9

All the area full of water underground is called the saturated zone.

Question 10

The area closest to the surface of the Earth with no water stored in it is called…?

Answer 10

The area closest to the surface of the Earth with no water stored in it is called the unsaturated zone.

Question 11

A well that enters the deepest underground stored water is called an … well?

Answer 11

A well that enters the deepest underground stored water is called an artesian well.

Question 12

Describe two problems that a person with a shallow well might encounter.

Answer 12

two problems that a person with a shallow well might encounter are: (i.) during a drought if the water table drops the well can possibly go dry (ii.) pollutants can reach them more quickly

Question 13

The deepest water stored underground is called an…?

Answer 13

The deepest water stored underground is called an aquifer.

Question 14

The layer that protects a deep aquifer and is often composed of clay is called the …layer.

Answer 14

The layer that protects a deep aquifer and is often composed of clay is called the confining layer.

Question 15

Water that flows downhill over the land is called…?

Answer 15

Water that flows downhill over the land is called runoff.

Question 16

The process of water entering the soil when it rains is called…?

Answer 16

The process of water entering the soil when it rains is called infiltration.

Question 17

Describe two programs at UNH that contribute to sustainable practices.

Answer 17

Ecoline used methane from Turnkey landfill to create power. Trash to Treasure recycles old furniture from students.

Question 18

What is point-source pollution?

Answer 18

Point-source pollution is pollution that we can identify where it comes from. An example,leaking gas tanks at a gas station, or a factory

Question 19

What is non-point source pollution?

Answer 19

Non-point source pollution is pollution that’s source is hard to identify an ex. some person or company dumping oil in the woods

Question 20

What is a watershed?

Answer 20

A watershed is all the land water runs over to get to one body water.

Question 21

What is meant by a watershed divide?

Answer 21

A watershed divide is all the high points that water flows from to make up the watershed.

Question 22

When we use food to produce energy, humans release water vapor in a process called…?

Answer 22

respiration

Question 23

Plants release water vapor in a process called…?

Answer 23

transpiration

Question 24

What land features help us know where the watershed divide should be drawn?

Answer 24

tops of hills or mountains

Question 25

What can change the level of surface water in a lake, stream or pond to rise and fall?

Answer 25

the amount of water in the water table can change the level of surface water in a lake, stream or pond causing it to rise and fall

Question 26

What is the role of plants in the carbon cycle?

Answer 26

they take in CO2 and release O2, the process is called photosynthesis.

Question 27

In the nitrogen cycle, how does nitrogen from animal waste or decomposing organisms get converted to a form that can be used by plants?

Answer 27

by bacteria in the soil

Question 28

Ocean currents are set up by …water moving at the surface and … water flowing at deeper levels.

Answer 28

Ocean currents are set up by warm water moving at the surface and cold water flowing at deeper levels.

Question 29

In the atmosphere, cold air sinks from the … and warm air rises at the …?

Answer 29

In the atmosphere, cold air sinks from the poles and warm air rises at the equator.

Question 30

Why is it that a large amount of the freshwater on Earth is not available to drink?

Answer 30

it is tied up in the ice caps and glaciers

Question 31

What does it mean to say water is potable?

Answer 31

‘potable’ means you can drink it

Question 32

Which type of soil takes a long time to let water through?

Answer 32

clay

Question 33

Why does water take so long to pass through clay?

Answer 33

clay is made up of flat tightly packed particles

Question 34

Rocks that cool from magma or lava make… rocks?

Answer 34

igneous

Question 35

Rocks that change due to great heat or pressure are called… rocks?

Answer 35

metamorphic

Question 36

Rocks that are made of pieces of sediment cemented together are called … rocks?

Answer 36

sedimentary