4.5 book 4C CH1-2

match with the correct words.

• space

• 氧

• damage

• 二氧化碳

• carbon dioxide

• 空間

• oxygen

• 破壞

match with the correct words

• atmosphere

• 水蒸氣

• electricity

• 電

• water vapour

• 氮

• nitrogen

• 大氣層

match with the correct words

• charcoal

• 熱力

• sand bucket

• 火焰

• flames

• 木炭

• burning

• 燃燒

• heat

• 滅火沙

match with the correct words

• fire blanket

• 滅火毯

• fuel

• 滅火筒

• lime water

• 石灰水

• fire extinguisher

• 生鏽

• rusting

• 燃料

Which of the following is needed for burning? (choose three answer)

• fuel (燃料)

• oxygen(氧氣)

• helium （氦氣）

• heat （熱力）

Air does not have a _____.

Air does not have a _____.

Air (can / cannot) be seen.

• cannot
• can

What is the name of gas A?

• oxygen

• nitrogen

• water vopour

• carbon dioxide

What is the name of gas B?

• oxygen

• nitrogen

• water vopour

• helium