passage3

3. a substance that things can be made from, such as wood, cloth, or plastic.
4. the organ inside your head that controls thought, memory, and movement.
6. the production of goods in factories; a particular business or trade.
8. things that are no longer needed and are thrown away; also means to use something badly or unnecessarily.
10. a particular way of doing something.
14. a very large area of salt water that covers most of the Earth.
17. to divide things into different parts or groups; to keep apart.
18. animals and plants that live naturally in the wild, not kept by humans.
19. something made by combining two or more different things.
20. how much there is of something; a quantity.

1. a man-made material that is light, cheap, and can be shaped easily when soft.
2. to hurt or damage someone or something.
5. to make something smaller in size, amount, or degree.
7. things that are worthless, unwanted, or thrown away; garbage.
9. to treat used things so that they can be used again.
11. to grow, improve, or make something become more advanced.
12. to stay in the same place or condition; to continue to be.
13. the quality of being hot; also to make something warm or hot.
15. relating to chemicals; a substance produced by or used in chemistry.
16. a hard, shiny material such as iron, gold, or silver that can conduct heat and electricity.