1. Fossil Fuels and Plastics

2. Fossil Fuels
Coal
Oil
Natural Gas (methane)

3. Coal, Oil and Gas

4. Hydrocarbons Hydrocarbons Compounds that contain hydrogen and
carbon only

5. The chemicals in Fossil Fuels
Fossil fuels are all sources of
hydrocarbons
The simplest hydrocarbon is methane CH4
(natural gas)

6. Burning Hydrocarbons Hydrocarbons produce carbon dioxide and
water when burned
Hydrocarbon + oxygen water +
carbon dioxide

7. Global warming This extra carbon dioxide has resulted in
the earth’s temperature increasing
This is known as global warming

9. Acid Rain (HL)

10. Acid Rain When coal, peat, oil and petrol are burned
the sulfur often present forms a compound called sulfur dioxide (SO2)
Volcanoes produce small amounts of this gas

11. Sulfur dioxide (SO2) dissolves in rain to
form acid rain

12. H2 SO4 (Sulfuric Acid)
H2 SO3 (Sulfurous Acid)
Are 2 of the acids present in acid rain

13. Effects of Acid Rain Causes lakes to become acidic, killing fish
Causes forests to become more acidic,
killing trees

14. Effects of Acid Rain Acid rain reacts with limestone
The limestone dissolves in the rain
Acid rain attacks iron structures such as bridges
It reduces agricultural production: cereals and grass

16. Plastics They are a large family of materials that
can be shaped or moulded on heating

17. Plastics Plastic bags and squeezy bottles Pipes and gutters
Hosepipes and shower curtains
Food containers and electrical components

18. Packaging and coffee cups
Carpets and combs

19. Properties of Plastics
Strong and flexible
Long lasting
Waterproof
Good heat insulators
Excellent electrical insulators

20. Crude Oil Crude oil provides the raw material for the
manufacture of plastics

21. Pollution by Plastics Non biodegradable means it does not rot.
To deal with this problem we can recycle
Most can be melted and reused again