Watch the video track a part by part and answer the following questions:
00:00 – 01:12
5. What form does the Stonehenge have?
6. When did the building begin?
7. What was it originally like at those times?
8. What was it probably constructed for?
9. When did the construction start again?
10. What is it made of?
11. How many blue stones were put there?
12. How much did each of those stones weigh?
13. How much time was it probably needed for this kind of job?
14. Why did the excavation begin?
01:13 - end
15. When did the previous excavation take place?
16. How many professors work on this project?
17. What are the dimensions of excavation?
18. What are the scientists looking for?
19. A reporter from which organization takes part in this track?