Unit 17

2. Used when talking about your own self.
4. To split something into parts or groups.
5. A straight line that goes from one corner of a shape to another corner that is not next to it.
9. Able to be collected and made into new products instead of being thrown away.
11. A feeling of being scared or afraid.
13. Shed tears because of sadness, pain or strong emotions.
14. To give off or reflect light.
15. A flat shape with three straight sides and three corners.
16. To make someone feel very happy, interested or enthusiastic.
17. A piece of land completely surrounded by water.
18. The part of your body that you use to see.
19. Exactly the same in appearance, size or features.
20. A long way above the ground or at a great height.

1. The act of reaching or coming to a place.
3. The ability to stay alive, especially in a difficult situation.
6. To use letters or words to communicate an idea or message.
7. A large, non-venomous snake that kills its prey by squeezing it.
8. A person who studies the world through observation, experiments and evidence.
10. A person who works in a library and helps people find and use books and other resources.
12. A vehicle with two wheels that is powered by a person pushing pedals.
15. The time when the sky is partly light and partly dark, just after sunset or before sunrise.