1. Dam Placed across a river to block or control the flow of water.

2. Reservoir Lake where water is stored from a dam.

3. Cofferdam Temporary water tight walls used to keep a construction site dry during the construction of a dam.

4. Embankment Blocks the flow of water.

5. Outlet Controls the flow of water through or around a dam

6. Spillway Allows excess water to bypass the dam when a reservoir becomes to full.

7. Irrigation Canals Carry water from a place where water is plentiful to a place where it is needed.

8. Navigation Canals Connects two bodies of water.

9. Erie Canal Connects New York to Great Lake Region

10. Panama Canal Connects Atlantic Ocean and Pacific Ocean

11. Lock Enclosed part of a canal with a gate that allows ships to pass through.

12. Tunnel Underground passageways

13. Pipelines Used to transport oil, natural gas, water etc…

14. Great Alaska Pipeline 800 miles Sends oil to US

15. Air Supported Structure Air pressure used to support walls.

16. Metro Dome http://www.youtube.com/watch?v=I xuxNLf87_Y

17. Space Stations Structures that allow people to live in space.

18. Skylab First space station of the United States.

19. Mir First Russian space station

20. International Space Station Space station operated by the United States and 15 other nations

21. Three advantages of building dams Store water Provide a supply of water Control the flow of water Recreation

22. Materials that dams are constructed from EarthConcreteWood

23. Why are spillways important to dams? Keeps water from flowing over the top of dam when there is excessive rain.

24. What is the main reason to build canals? To connect two bodies of water. Saves on travel time.

25. What are reasons for building tunnels? To move people and materials underground. Faster Takes up less space above ground.

26. Three types of tunnels Earth- Use soil to build dam. Immersed- Pre-fabricated tunnel Rock- Blasting and boring machines

27. Chunnel Tunnel that connects England and France. One of the longest tunnels in the world.

28. How do pipelines keep pressure and keep products moving? Above ground pumping stations

29. How are sections of pipelines inspected for leaks X-raysUltrasound

30. Why must the earth be packed tightly around pipelines? To keep ground from settling and causing pipe to move and burst.

31. Four elements that make up an air supported structure. Membrane Means of supporting membrane Anchoring membrane Way in and out.

32. What is the membrane of an air supported structure made from? Synthetic material

33. How do you get in and out of an air supported structure? Air lock Revolving Door

34. Why are traditional doors not used in air supported structures? Hard to open door. Air will escape

35. What is the main advantage of air supported structures? Can be set up and taken down fast and easily.

36. How do space stations produce power? Solar

37. How was Skylab launched into space? What year Saturn V Rocket 1973

38. What was the longest stay of a astronaut on Skylab? 84 Days

39. What was the purpose of Skylab? To study how the human body reacts to space

40. What happened to Skylab? Fell to the earth and burned up in the atmosphere

41. What date did the Russian space station Mir take orbit? February 20, 1986

42. How long was Mir in Orbit? What happened to the space station? 15 Years Diverted into the atmosphere and burned?

43. How are materials delivered to the International Space Station. Space Shuttle

44. What year did the first crew begin to live on the ISS? How many astronauts live on the ISS at one time? 20006

45. Explain the orbit of ISS 220 miles above the earth. Flies at 17, 500 mph Circles the earth every 90 minutes