water cycle

Question 1

True or False?

The water cycle provides fresh water for plants and animals as water is passed from one organism to another in the water cycle.

Answer 1

False.

While the water cycle does provide fresh water to land plants and animals, this occurs due to continuous evaporation and precipitation, not by passing water between different living organisms.

Question 2

describe the water cycle

Answer 2

• energy from the sun causes water from lakes and oceans evaporates
• water vapour travels in the air and cools down The evaporated water condenses into clouds and returns to earth as precipitation.

-the water from precipitation is useful for life on land

• Once the water hits the ground, some evaporates into the atmosphere. Some of it passes through rocks and forms aquifers.

– the water then returns to rivers and oceans from surface run off.

Question 3

why is the water cycle important

Answer 3

living organisms require water and the water cycle provides organisms on land with a continuous supply of water

Question 4

Where is the majority of the Earth’s water located?

Answer 4

in the sea as salt water

Question 5

Explain how a plant is involved in the water cycle

Answer 5

Plants take in water through their roots. The water moves up the plant through xylem and evaporates as water vapour out of the stomata. This is called transpiration.

Question 6

define precipitation

Answer 6

Precipitation occurs when water falls from clouds, e.g. in the form of rain, snow or sleet.

Question 7

define percolation

Answer 7

Percolation is the process where a fluid, like water, moves slowly through a porous material, such as soil or rock, due to gravity or other forces

Question 8

define transpiration

Answer 8

Transpiration is the evaporation of water from a plant’s leaves, stem, or flowers