Fuel Conservation
18 Grade 4 Agriculture questions on Fuel Conservation, with worked marking schemes. 18 questions are available on this topic in full.
Question 1
1 markWhich of the following is a renewable source of cooking fuel that can be replaced by planting?
A. Coal from the ground
B. Firewood from planted trees
C. Cooking gas (LPG)
D. Kerosene
(1 mark)
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1 markMama Achieng notices that her jiko uses a lot of charcoal and the food takes long to cook. Which action would help her save fuel?
A. Lighting the jiko very early before the food is ready
B. Cutting the food into small pieces before cooking
C. Cooking with the sufuria uncovered
D. Adding more charcoal than needed
(1 mark)
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1 markWhy is it important to conserve fuel such as firewood and charcoal at home?
A. To make cooking take longer
B. To save money and protect trees from being cut down
C. To make food taste sweeter
D. To use more electricity
(1 mark)
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1 markUsing the sun to dry maize or vegetables instead of a fire is a good way to conserve fuel because the sun's energy is:
A. Very expensive
B. Free and does not need firewood
C. Dangerous to food
D. Only found at night
(1 mark)
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1 markA family soaks dry beans in water overnight before cooking them the next day. How does this help conserve fuel?
A. The beans do not need to be cooked at all
B. The beans cook faster and use less firewood
C. The beans become poisonous
D. The beans use more charcoal
(1 mark)
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2 marksA pupil says, 'Leaving the jiko burning after food is ready is fine.' Give two reasons why this is not a good practice.
(2 marks)
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1 markWhich of these actions helps a family reduce the amount of charcoal they buy each month?
A. Using an energy-saving jiko
B. Cooking with the lid off
C. Buying wet firewood
D. Keeping the fire burning all day
(1 mark)
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2 marksDescribe how soaking dry beans before cooking helps to conserve fuel.
(2 marks)
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4 marksExplain two ways that conserving cooking fuel helps to protect the environment.
(4 marks)
Marking scheme
Two ways, 2 marks each: (1) Using less firewood/charcoal means fewer trees are cut down, so forests are protected and the soil is held together. (2) Using less fuel produces less smoke, reducing air pollution that is harmful to people and the environment.
Question 10
1 markA cook wants to conserve gas when boiling water. Which is the best action?
A. Leave the tap running while boiling
B. Fill the whole sufuria to the top every time
C. Boil only the amount of water needed
D. Boil water twice for the same use
(1 mark)
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1 markCovering a cooking pot with a lid while cooking helps to conserve fuel because it:
A. Keeps the heat inside so food cooks faster
B. Makes the food colourful
C. Makes the pot heavier
D. Lets the smoke escape quickly
(1 mark)
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1 markWhich type of jiko is known to save the most charcoal because it holds heat inside?
A. An open three-stone fire
B. A metal jiko with no lining
C. Improved energy-saving jiko (jiko okoa)
D. A grass fire
(1 mark)
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2 marksState two ways a family can conserve firewood when cooking at home.
(2 marks)
Marking scheme
Any two (1 mark each): use dry firewood; cover the sufuria with a lid; put out the fire immediately after cooking; cut food into small pieces before cooking; use an energy-saving jiko; soak hard foods like beans before cooking; cook several foods at once.
Question 14
3 marksGive three reasons why it is important to conserve cooking fuel in the home.
(3 marks)
Marking scheme
Any three (1 mark each): saves money used to buy fuel; protects trees/forests from being cut down; reduces smoke and pollution; saves time; ensures fuel lasts longer/is available in future.
Question 15
3 marksJohn's mother cooks on a three-stone open fire and complains that she uses too much firewood.
(a) Name one improved cooking method that would save her firewood.
(b) Explain one way that method saves fuel.
(3 marks)
Marking scheme
(a) 1 mark: an improved/energy-saving jiko (e.g. jiko okoa) or a fireless cooker/basket. (b) 2 marks: it keeps/traps the heat inside so food cooks faster and less firewood is burnt; it does not lose heat to the open air like the three-stone fire.
Question 16
1 markDry firewood is better than wet firewood for cooking because dry firewood:
A. Produces more smoke
B. Puts out the fire
C. Takes longer to light
D. Burns easily and produces less smoke
(1 mark)
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1 markWhich practice below WASTES cooking fuel?
A. Using a lid on the sufuria
B. Using dry firewood
C. Cooking several foods at once on one fire
D. Leaving the fire burning after food is ready
(1 mark)
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1 markWhich of these is a source of fuel used for cooking in many Kenyan homes?
A. Firewood
B. Water
C. Clay
D. Sand
(1 mark)
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