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1. what were gutters and drain pipes, toy soldiers, motor bike windscreens, lemonade bottles, electrical plug sockets, furniture stuffing and dustbins made out of before plastics came into use and what were the advantages/disadvantages of the previous materials used? and what exaclty does the word 'plastic' mean? thanks alot!

2. What part does limestone play in a.farming b.building c.glass

3. what products use crude oil?

4. How do you make plastic? This is not really a science question but it would help me with my social issues coursework in technology? Does it involve burning fossil fuels? Or anything that affects the environment?

5. Which fuel is cleaner Ethanol or Butanol

6. How do you make plastic? This is not really a science question but it would help me with my social issues coursework in technology? Does it involve burning fossil fuels? Or anything that affects the environment?

7. 70% of metal is used once, then thrown away. How does recycling it save metal and energy?

8. Hi, Why can we use iron to make saucepans but not magnesium? Also Calcium is found in our teeth but its not the element calcium which is part of our teeth. Why do we know this? Thanks

9. Please may I have some information on glass for science report due in tomorrow?

10. Why has so much gold jewellery survived from ancient civilisations?

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