Crossword
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Check
Across:
1.
Used to produce polystyrene
3.
Prepared using natural gas
4.
Mixed with Butane to detect leakage
6.
Alternate fuel for vehicles
7.
Gas cylinders
9.
10.
Down:
2.
naturally occuring hydrocarbon mixture
5.
hydrocarbon with three carbon atoms
8.
Hydrocarbon with 4 carbon atoms
OK