Science - Unit 5 topic 1-2 quiz

Question 1

____ of Earth’s water is _____

Answer 1

1. 97%
2. Salt water

Question 2

Why can’t life exist without water?

Answer 2

Because our producers need water to photosynthesis. Water meets basic human needs.

Question 3

Less than ____ is _____

Answer 3

1. 3%
2. Fresh water

Question 4

What is the water cycle?

Answer 4

Evaporation
Transpiration
Condensation
Precipitation
Run-off
Ground water

Question 5

What is the distribution of water and their percents?

Answer 5

Ground water - 0.63%
Oceans and seas - 97%
Rivers, Lakes, Ponds - 0.02%
Glaciers and ice sheets - 2.15%

Question 6

What is the difference between water quality and water quantity?

Answer 6

Quality - take good care of something/usable/efficient
ex/ clear, clean, taste, smell, colour

Quantity - the amount of something

Question 7

What are ways we need to manage our water in Canada?

Answer 7

Conserve water
Agriculture
Business
How are we using it
Prevent illness
Monitor quantity and quality

Question 8

About ___ to ____ of your body is made out of water. Can this change?

Answer 8

1. 60-70%
2. It can change from
   illness
   Sweaty
   Dehydration
   Growing up

Question 9

About ____ of Earth’s precipitation falls into the ____

Answer 9

1. 78%
2. Oceans

Question 10

Define glacier and ice cap

Answer 10

Glacier - moving mass of ice and snow
Ice cap - glacier that covers flat area of land

Question 11

What is the % of how much of Earth’s fresh water is LOCKED up in ice?

Answer 11

77%

Question 12

Define ice field

Answer 12

Ice field - upland area of ice that feeds into two or more glaciers

Question 13

The columbia ice field is so large it _______

Answer 13

Creates its own weather system

Question 14

How much snow must accumulate for snow to turn into glacial ice?

Answer 14

30 m of snow must accumulate. There would be a lot of pressure that would need to happen in order for this to work

Question 15

How do glaciers form?

Answer 15

Glaciers begin as snow. Snowflakes then accumulate, gradually becoming grains, ice crystals, then finally, ice

Question 16

What is the difference between a valley glacier and a continental glacier?

Answer 16

Valley glacier - forms on a valley
ex/ athabasca glacier - cut through and formed the valley jasper is located in
Continental glacier - huge mass of ice and snow that resembles a continent
ex/ antarctica, greenland

Question 17

What is the difference between and icefall and crevasse?

Answer 17

Ice fall - Glacier flows over steep cliff, and breaks up; ice fall occurs
Crevasse - Fissure or crack in the ice

Question 18

How can glaciers advance forward and retreat back?

Answer 18

Advance forward - when there is lots of snow and percipitation. Gravity pulls glacier downward so they can be stretched thin when melting

Retreat back - often during warmer temperatures - melt

Question 19

How is pack ice different than icebergs?

Answer 19

Ice bergs are large chunks ice that break off from a continental glacier

Pack ice - thin sheet of ice formed by freezing ocean water

Question 20

Define erosion

Answer 20

When earthen materials are worn away and transported by natural forces.
ex/ wind, water, gravity, glaciers

Question 21

Define moraine

Answer 21

Large ridge of material left over from a glacier

Question 22

Define striation

Answer 22

Marks are left behind when bedrock is gauged by rock fragments

Question 23

Define arete

Answer 23

Two or more glaciers erode a mountain summit from several directions

Question 24

Define cirque

Answer 24

Valley glaciers erode bowl-shaped basins in the side of the mountain

Question 25

Define horn

Answer 25

Sharpened peak

Question 26

Define deposition

Answer 26

When sediment is dropped off or left behind

Question 27

Define till

Answer 27

Mixture of different sized sediments

Question 28

Define erratic

Answer 28

Glaciers pick up and deposit huge rock fragments

Question 29

Define outwash

Answer 29

Material deposit by the meltwater from the glacier

Question 30

Define esker

Answer 30

When a glacier melts, a winding ridge of sand and gravel is left behind

Question 31

Define meltwater

Answer 31

Water formed by melting of snow and ice

Question 32

Define millwell

Answer 32

Meltwater streams form the millwells as they plunge into glacier ice