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Year 8 Fuels and global warming

Last updated 5 months ago
11 questions
8

Know the products of complete combustion (of hydrocarbons and carbohydrates) and how their presence can be detected experimentally.

carbon dioxide
water
Complete combustion of methane (a hydrocarbon)
Complete combustion of carbohydrate
Complete combustion of a carbohydrate (glucose)
Complete combustion of a carbohydrate (starch)
Complete combustion of petrol (a hydrocarbon)
4

Know the products of complete combustion (of hydrocarbons and carbohydrates) and how their presence can be detected experimentally.

Add to anhydrous copper sulfate
Anhydrous copper sulfate is hydrated and turns from white to blue.
Bubble through lime water
lime water goes cloudy
Test for carbon dioxide
Test for water
Positive result for carbon dioxide
Positive result for water
7

Know the products of incomplete combustion (of hydrocarbons and carbohydrates)

carbon dioxide
carbon monoxide
soot (carbon)
Water
Possible products of incomplete combustion of carbohydrates
Possible products of incomplete combustion of hydrocarbons
2

Know the problems associated with the products of incomplete combustion

carbon monoxide
soot (carbon)
Toxic gas affects red blood cells
Black powder which makes machines inefficient
5

Which of the following are greenhouse gasses
https://scied.ucar.edu/interactive/ghg-sorting-game

  • Methane
  • Carbon dioxide
  • CFC's
  • water
  • RGSHW
  • Greenhouse gas
  • Not a greenhouse gas
1
Complete then copy into your books.
Note at GCSE we say heat rather than energy
Other Answer Choices:
As the Earth’s surface gets warmer, it emits more energy.
Some energy is absorbed by greenhouse gases and transferred back to the Earth’s surface.
Energy is transferred from the Sun to the Earth’s surface.
Some reflected energy is transferred to space.
Most energy is absorbed by the Earth’s surface, making it warmer.
3

Be able to explain the ‘greenhouse effect’

The atmosphere
The earth.
The sun
Visible light from
Passes through
And heats up the surface of
5

Be able to explain the ‘greenhouse effect’

by the atmosphere
global warming
heats up
increases
the surface of the earth
The earth's surface
Infra - red energy is radiated outwards from
Some Infra red radiation is trapped
and the average global temperature
This is known as
1

Which of the following are potential impacts of global warming

Possible impact
Not a possible impact
Climate change
Habitat loss
Sea level rises
lower grade boundaries in the test
Coral bleaching
Floods
Droughts
Liverpool winning the league (again)! I had to update the quiz :-)
3
Analyse data to discuss whether or not mankind is responsible for the current increases in mean temperature. 
https://scied.ucar.edu/interactive/climate-sensitivity-calculator
https://scied.ucar.edu/interactive/simple-climate-model
As CO₂ increases temperature ______________

Other Answer Choices:
increases
does not change
decreases
5

Match up the options and copy them into your books as a set of bullet points.

Draggable itemCorresponding Item
The largest sources of carbon dioxide emissions are …
the amount of energy transferred from the Sun to the Earth, and the tilt of the Earth’s axis.
Natural causes of changes in the Earth’s temperature include …
an increase in the greenhouse effect because there are more greenhouse gases in the atmosphere.
Global emissions of carbon dioxide have increased over the past 200 years because …
carbon dioxide and other gases.
Greenhouse gases include …
transport and electricity generation from power stations.
Global warming is caused by …
there has been an increase in the burning of fossil fuel.