Material world

1. A solid formed during a chemical change
5. A change of state from solid to gas
9. Able to be hammered or bent into new shapes
10. A change of state where a gas is cooled and forms a liquid
11. A change of state from solid to gas
13. An alloy of iron and carbon that is much harder than iron and less likely to rust
16. A mixture where one substance is dissolved into another
17. Describes liquids that can be mixed
18. Describes a substance that can chemically dissolve other substances; examples are acids
20. Very shiny

2. A simplified representation of solids, liquids and gases
3. A substance being dissolved
4. The chemical property of a substance that describes how easily the substance undergoes combustion
5. A substance that dissolves into another substance
6. An alloy of copper and tin that is much harder than pure copper
7. Substances made of only one type of atom
8. A change of state where a liquid is heated and changes to a gas within the liquid
10. When a metal reacts with the chemicals in its environment
12. A substance made of long chains of smaller units that are repeated
14. Any chemical reaction where a substance burns in oxygen to produce light and heat
15. Minerals rich in metal; the pure metal can be extracted
19. The smallest building blocks of matter