2. Open Court Vocabulary for “Why Did the Dinosaurs Disappear?” Genre: Expository Text

3. climate The climate during the Ice Age was very cold. ( the normal weather conditions of a place )

4. protection A turtle’s shell gives it protection. ( the keeping of someone or something from harm )

5. moisture We can see the moisture of dew on the grass early in the morning. ( water or other liquid in the air or on a surface )

6. erupt Earthquakes made volcanoes erupt all over the world. ( to break out suddenly with force )

7. crater The meteorite made a huge crater when it hit the Earth. ( large hole )

8. Meteorites fall to the Earth pulled by Earth’s gravity. ( rocks from outer space)

9. discovery A new discovery gave scientists a new idea why the Earth became so cold. ( something that is seen or found out for the first time )

10. starved The dinosaurs may have starved to death. ( had nothing to eat )

11. moisture ( water or other liquid in the air or on a surface )

12. climate ( the normal weather conditions of a place )

13. erupt ( to break out suddenly with force )

14. ( rocks from outer space)

15. starved ( had nothing to eat )

16. ( rocks from outer space)

17. protection ( the keeping of someone or something from harm )

18. crater ( large hole )

19. “Why Did the Dinosaurs Disappear?” Scientists have lots of theories (ideas), but we will never know for sure. You will have to decide which theory you agree with the most.