1. Calderglen High School
Alternative Fuels 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Calderglen High School

2. Calderglen High School1
Which part of the carbon cycle allows plants to use carbon dioxide, water and sunlight to make (food) glucose?
answer
Photosynthesis
Calderglen High School

3. Calderglen High School2
Which part of the carbon cycle involves living organisms releasing carbon dioxide back into the air?
answer
Respiration
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4. What is missing from the fire triangle?3
What is missing from the fire triangle?
answer
Fuel
Oxygen
Heat
Calderglen High School

5. What is missing from the fire triangle?4
What is missing from the fire triangle?
answer
Fuel
Heat
Oxygen
Calderglen High School

6. Oxides of Nitrogen and Sulphur; Carbon Monoxide; 5
Give examples of pollutants released into the atmosphere by burning hydrocarbons
answer
Oxides of Nitrogen and Sulphur;
Carbon Monoxide;
Unburned hydrocarbons;
Lead from some petrols
Calderglen High School

7. 6
Give examples of how air pollutants from burning hydrocarbons can be reduced
answer
Removal of SULPHUR when fuels are made
Use of CATALYTIC CONVERTORS in cars
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8. Calderglen High School7
What is BIOMASS?
answer
Plant based materials (which can be turned into biofuels)
Calderglen High School

9. Is ETHANOL a fossil fuel or a biofuel? How is it produced?8
Is ETHANOL a fossil fuel or a biofuel? How is it produced?
answer
Ethanol is BIOFUEL
Made from fermentation of carbohydrates
Calderglen High School

10. BIOGAS is a biofuel. What is it and how is it produced?9
BIOGAS is a biofuel. What is it and how is it produced?
answer
BIOGAS is methane gas made from anaerobic decomposition of organic waste
Calderglen High School

11. Name a biofuel made from vegetable oil.10
Name a biofuel made from vegetable oil.
answer
Biodiesel
Made from vegetable oil
Calderglen High School

12. Give an advantage of using hydrogen as a fuel?11
Give an advantage of using hydrogen as a fuel?
answer
Hydrogen
Advantages:
RENEWABLE
ONLY produces WATER when burned.
Calderglen High School

13. How is the renewable fuel hydrogen produced?12
How is the renewable fuel hydrogen produced?
answer
Hydrogen can be produced from electrolysis of water
Calderglen High School

14. Give an advantage of using ethanol as a fuel?13
Give an advantage of using ethanol as a fuel?
answer
Ethanol
RENEWABLE
Carbon neutral (Doesn’t increase the overall carbon dioxide levels in the atmosphere).
Calderglen High School

15. How is the renewable fuel ethanol produced?14
How is the renewable fuel ethanol produced?
answer
Ethanol is produced from fermentation of carbohydrates
Calderglen High School

16. How is the renewable fuel ethanol produced?15
How is the renewable fuel ethanol produced?
answer
Ethanol is produced from fermentation of carbohydrates
Calderglen High School

17. Give two major ways of releasing carbon dioxide into the atmosphere?16
Give two major ways of releasing carbon dioxide into the atmosphere?
answer
Burning
Respiration
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