[急@20分!]Living Science WorkBook 1B

K.Y.

2008-06-30 6:31 am

P.39
Give a daily example for each of the following processes.
a)Condensation
b)Freezing
c)Melting
d)Boiling

P.42
What happens when we put a spoonful of sugar to a cup of lemon tea and then stir the solution?Describe and explain briefly with the partcile theory.

Imagine that you have a brother who is in primary five.He has not heard of 'atoms' before.How would you explain it to him?You may start with the following sentence.
'Divide a loaf of bread into two halves,then into four then into eight and so on.Finally,...'

P.47
Most animals float in water.Explain why?

更新1:

答到就答... 答唔晒都OK...

回答 (1)

奕瑜

2008-06-30 6:52 am

✔ 最佳答案

P.39
a) when the water vapour in air, the cold air will condense the wayer vapour,
and go back to the ground
b)when the water put into the refrigerator, the water will become ice
c)when you put the ice under thr bright sun, it melts
d)when you boil the water, the water become gas

P.42
when we put the sugar into the cup of lemon tea, and then stir it, the sugar
will dissolve (我唔知點解釋個原因, 剩係得結果...)

我剩係識呢兩題!!! sorry!!! 其實我掉左本作業.... 所以無一個confirm
既ans. 比你!!! 可能d grammar 會錯!!!

參考: myself

👍 0 👎 0