Page 84 - Big Ideas Year 10 sciPAD 2025
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84 SCIPAD - BIG IDEAS - BOOK 2
FUELS AND CLIMATE CHANGE
(a) Outline the purpose of the beaker filled with ice and water.
(b) Outline the purpose of the test tube filled with lime water.
(c) During the investigation a student noticed that a black substance formed on the
glass funnel above the tea-light candle.
(i) Identify this substance.
(ii) In order to produce this substance, was the candle burning in a plentiful
supply of oxygen, or a limited supply of oxygen?
7. (a) State the name given to the atmosphere’s ability to keep the Earth warm.
(b) Complete the following paragraph using your own knowledge and the word list
provided.
fossil fuels - carbon dioxide - cold - photosynthesise
blanket - respiring - input - warmer - changing - erupt
We need in the atmosphere. Without it, the Earth would
become very , and plants would not be able to .
Carbon dioxide acts like a , trapping heat in Earth’s atmosphere.
Carbon dioxide is produced naturally as part of the carbon cycle by animals and plants
, and produced by volcanoes when they .
Carbon dioxide is also an exhaust gas made when we burn
in oxygen. This extra of carbon dioxide into the atmosphere is thought to
be causing the Earth to get .
As the Earth warms up the climate is and this could seriously
affect the way we live.
Three possible consequences of this are:
•
•
•
8. When methane burns in a limited supply of oxygen, carbon monoxide and water are
produced.
(a) Word a word equation for this reaction:
+ +
(b) Complete the symbol equation for this reaction:
CH4
+
+
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