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Material Choices (1)
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.
Check
Across: 4. an example of an elastomer 6. A long thread of small cross-sectional area. 9. Connections between polymer chains 10. A chemical which accelerates a chemical reaction 15. Where rubbish is placed in the ground 16. Description of a material which is hard to stretch or compress 17. Working with materials at the level of atoms and molecules 18. A material which has a regular repeated arrangement of atoms 19. A description of a polymer which is easy to stretch and bounce 21. A material which is difficult to scratch or dent is ......
Down: 1. A chemical made from hydrogen and carbon atoms 2. Powdered solids mixed with a polymer 3. Describes a material which is easy to pull apart or to break 5. Description of a material which shatters or cracks when it breaks 7. Methods for making new materials from materials which have already been used 8. A material which has very long molecules 11. Describes a material which is easy to scratch or dent 12. A device for burning rubbish 13. A chemical added to a polymer to make it more flexible 14. A very small length measurement 20. A description of a material which resists cracking and impact forces
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