Standard Grade Science
Oil reservoirs and oil fractions
Click on the box that contains the correct answer
The diagram below show a type of rock formation in which oil and gas may be trapped.
What is the name for this type of rock structure?

- Anticline
- Seam
- Oil trap
- Fault trap
The diagram below show a type of rock formation in which oil and gas may be trapped.
What is the name for this type of rock structure?

- Anticline
- Seam
- Oil trap
- Fault trap
Fossil fuels are formed over a period of
- tens of years
- hundreds of years
- thousands of years
- millions of years
Coal forms in underground layers known as
- traps
- seams
- drills
- caps
Which box shows fossil fuels that can seep upwards through permeable layers of rock?
- Only coal
- Both coal and gas
- Only oil
- Both oil and gas
An energy crisis will occur when
- the demand for oil outstrips the supply
- the price of oil reaches $200 per barrel
- the number of cars in the UK is twice the current number
- the tax on oil is doubled
Which box gives the best description for the formation of a fossil fuel
- the dead remains of plants and animals are buried deep underground and subjected to high pressure over thousands of years
- the dead remains of plants only are buried just under the surface of the Earth for millions of years
- the dead remains of plants and animals are buried deep underground and subjected to high pressure over millions of years
- the dead remains of only animals are buried deep underground and subjected to low pressure over thousands of years
Which of the oil fractions shown below has the lowest boiling point?
- petrol
- diesel
- bitumen
- paraffin
Which of the oil fractions shown below has the darkest colour?
- petrol
- diesel
- bitumen
- paraffin
Which of the oil fractions shown below has the lowest boiling point?
- Paraffin
- Naphtha
- Diesel
- Refinery gas