4.3 Ch2 More about water

Water has no colour.

• Yes

• No

Water has smell.

• Yes

• No

Water has a fixed shape(固定形狀).

• Yes

• No

Water can flow(流動).

• Yes

• No

Water does not have any taste.

• Yes

• No

Match the words with the correct state of water.

• solid

• gas

• water vapour

• ice

• liquid

• water

符合以下

Groups:

(a) water vapour

,

(b) ice

• It does not have a fixed shape(固定形狀)

• It has a fixed shape(固定形狀)

• It cannot flow

• It can flow

Water vapour is ...

• white

• red

• yellow

• transparent (透明的)

When water is cooled, it freezes to turns into ...

• water

• water vapour

• ice

When ice is heated, it melts and turns into ...

• water

• water vapour

• ice