Earth Science c/o frozen water

Question

1.  between 0 degrees and 4 degrees C

 

     a.  liquid water is more dense than ice

     b.  liequid water is less dense than ice

     c.  both liquid water adn ice have the same density

 

 

 

2.  ponds freeze

 

    a.  from the bottom up

    b.  from the top down

    c.  when the temp is above 4 degrees C

    d.  all of these

 

3.  preciptation is moe likely to occur

 

    a.  when the air is saturaed

    b.  when condesation nuclie are present

    c.  when warm air rises and cools

    d.  all of these

    e.  none of these

Answer 1

1- a

2- b

3- a

The water when turns to Ice expands and then gets less density than water, besides, if you see in the ocean the big icebergs float and it is not due to its Hydrodynamic or hydrostatic form.From wikipedia I make this transcript:" The solid form of most substances is denser than the liquid phase; thus, a block of most solids will sink in the liquid. However, a block of ice floats in liquid water because ice is less dense. Upon freezing, the density of water decreases by about 9%.

Answer 2

1. b. Liquid water has much lower density than ice, the later is solid and dense.

 

2. Ponds freeze from top down since the water surface comes in contact with the cooler/freezing air temperature, the interior of the earth is warm and therefore, bottom freezes slowly. b

 

3. Precipitation occurs when the air is saturated with water vapor. a.