Across
- 3. the ability of a substance to bend or be hammered into different shapes
- 6. a plastic made from starch derived from plants such as corn and potato
- 7. conductivity the ability of a substance to transfer heat: good heat conductors transfer well; poor heat conductors transfer poorly
- 11. the ability of a substance to be drawn into wires
- 15. a green patina caused by the reaction of copper with air or sea water over a long period of time
- 17. conductivity the ability af a substance to transfer elctricity: good electrical conductors transfer electricity well;poor electricical conductors transfer electricity poorly
- 18. a new substance produced in a chemical reaction
Down
- 1. the ability of a substance to catch fire
- 2. properties the properties that show how a substance reacts when combined with other substances
- 4. how shiney a material is
- 5. does not break down
- 8. how poisonous a substances is
- 9. change ocurs when the form of a substance changes, but the kind of substance remains the same; for example, a change of state and dissolving
- 10. capable of decomposing by the action of micro-organisms
- 12. a compound produced when iron reacts with oxygen and water in the atmosphere
- 13. a characteristic or feature of a substance
- 14. the breakdown of a metallic substance due to a chemical reaction with substances in the environment, such as oxygen and water
- 16. a substance used up in a chemical reaction
- 18. a large molecule made up of small repeating subunits chemically bonded together
