Textbook Glossary Terminology

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Across
  1. 3. a process where two liquids or two gases mix due to the motion of their particles
  2. 5. the substances formed in chemical reactions
  3. 6. easily crumbled or shattered
  4. 9. substances made of lattices or identical molecules with two or more types of atoms
  5. 11. a simplified representation of solids, liquids and gases
  6. 12. any combination of two or more elements and compounds
  7. 13. the smallest building blocks of matter
  8. 17. when a metal reacts with the chemicals in its environment
  9. 19. a mixture in which one substance is dissolved in another
  10. 20. substances made up of only one type of atom
Down
  1. 1. the term used to describe the structure of the DNA molecule; consists of two strands twisted into a double spiral
  2. 2. any chemical reaction where a substance burns in oxygen to produce light and heat
  3. 4. an alloy of copper and tin that is much harder than pure copper
  4. 6. a change of state where a liquid is heated and changes to a gas within the liquid
  5. 7. the change of state from liquid to solid
  6. 8. the change of state where a liquid changes to a gas at the surface of the liquid
  7. 10. able to be hammered or bent into new shapes
  8. 14. the change of state when a solid is heated and forms a liquid
  9. 15. a period in human civilisation between approximately 1200 BCE and 500 CE during which humans used steel to create useful utensils, tools, weapons and armour.
  10. 16. minerals rich in metals such as copper and iron; the pure metal can be extracted from the ore
  11. 18. a substance being dissolved