water cycles

Question 1

define evaporation/condensation/boiling/melting/freezing

Answer 1

__ is the change of state of __ from __ state to ___ state due to heat gain/lost. It occurs at (what temp)

Question 2

why is the water cycle important

Answer 2

the water cycle is the only natural way to refresh water and it also ensures a constant supply of fresh water for the living things on earth

Question 3

effects of oil spills

Answer 3

-oil from ships and tankers can kill the plants and animals living in the water
-oil floating on the water can prevents oxygen from dissolving into the water
-oil would also stick to the feathers of birds living near the water, causing the feathers to clump together-> cannot keep warm

Question 4

effects of deforestation

Answer 4

-no trees -> soil exposed -> rain and wind can move the soil into the water bodies -> polluted water reduces sunlight that reaches the aquatic plants in the water -> no photosynthesis -> no oxygen -> other living things in the water die

Question 5

y does the temperature remain the same although its still being heated up

Answer 5

the heat from the fire was used to change the state of the water from (what state) to (what state)

Question 6

y is using fertilizers bad

Answer 6

there might be soil degradation, nitrogen leaching, soil compaction, reduction in soil organic matter, and loss of soil carbon