mid term assessment practice yr8

Question 1

what is interception

Answer 1

water perciptiation is temporaily caught by plants or leaves before reaching the ground by dripping or stemflow

Question 2

what is surface storage

Answer 2

water is held on the surface in lakes ponds or puddles

Question 3

soil moisture

Answer 3

water stored or held in the soil

Question 4

ground water

Answer 4

a store of water held below the surface in the ground above the base rock

Question 5

stem flow

Answer 5

water running down a plant stem or a trunk of a tree

Question 6

infiltration

Answer 6

a proccess by which surface water enters the soil by filtering it through soil pores /small openings

Question 7

surface runoff

Answer 7

the transfer of water over the surface of the ground . it is easiest to see where it forms river

Question 8

through flow

Answer 8

the downhill transfer of water through pores and small cavites in the soil

Question 9

percolation

Answer 9

the down ward flow of water through cracks and joints in the underlying rock

Question 10

groundwater flow

Answer 10

the downslope movement of water through underlying rocks

Question 11

scource

Answer 11

where a river begins

Question 12

mouth

Answer 12

where a river meets the sea

Question 13

confluence

Answer 13

the point at which two rivers meet

Question 14

tibrutry

Answer 14

a small river joining a bigger one

Question 15

channel

Answer 15

where a river flows

Question 16

erosion

Answer 16

the process that wears away the river bed and banks.

Question 17

hydraulic action

Answer 17

the power of the water

Question 18

corrosion/solution

Answer 18

when minerals and salts get dissolved in the water

Question 19

attrition

Answer 19

when the rocks bumping into each other and breaking it down

Question 20

abrasion

Answer 20

when the large rocks get dragged across the river bed it scrapes material apart

Question 21

suspension

Answer 21

when fine light material is carried along by the river

Question 22

solution

Answer 22

minerals are dissolved in the water. this is chemical change

Question 23

traction

Answer 23

large boulders and rocks are rolled along the river bed

Question 24

saltation

Answer 24

small pebbles and stones bounce along the river bed

Question 25

waterfall

Answer 25

when water falls over a step in the course of a river
UPPER

Question 26

interlocking spur

Answer 26

projections of land that stick out . the river winds around these
UPPER

Question 27

Gorge

Answer 27

steep sided almost vertical valley sides left as a waterfall retreats
UPPER

Question 28

meander

Answer 28

when a river bends a curves