Bell Work 2/11/14

1. Bell Work 2/11/14 • On your desk: • I.N. • Pencil/Pen • PRIDE Cards • What percentage do you think you earned on the Oceans Exam? • How long did you study? • How did you study? • Notecards • Online quizzes • Quizzed a friend • Etcetera, Etcetera, Etcetera

2. Oceans Exam data

3. The AtmosphereIt’s time to move up in the world! Update your table of contents!!

4. The Atmosphere • As you view this time-lapse video write down 3 things that occur in the Earth’s atmosphere. • http://www.youtube.com/watch?v=O3L6p1zDs6k

5. The Atmosphere Atmosphere: the layer of gases that surrounds Earth.

6. Atmospheric Composition Air is a combination of gases and solid particles.

7. Atmospheric Composition Earth’s atmosphere consists mainly of nitrogen (78%) and oxygen (21%). The amounts of nitrogen and oxygen in the atmosphere are fairly constant over time.

8. Atmospheric Composition The concentrations of some atmospheric gases are not as constant over time as the concentrations of N and O. • Water vapor • Carbon Dioxide

9. Atmospheric Composition • During the past 150 years, the concentration of atmospheric carbon dioxide has increased. • Carbon dioxide traps warm air in our atmosphere and leads to • ….Global warming!

10. Atmospheric Composition What about the Ozone layer?? The ozone layer blocks harmful ultraviolet rays from reaching Earth’s surface. Molecules of ozone are formed by the addition of an oxygen atom to an oxygen molecule. O3

11. Atmospheric Composition Earth’s atmosphere also contains solids in the form of tiny particles, such as dust, salt, and ice. Very important to the water cycle!!

12. Atmospheric Layers The atmosphere is classified into five different layers: Troposphere Stratosphere Mesosphere Thermosphere Exosphere Inosphere

13. Cut!

15. Bell Work 2/12/14 • On your desk: • I.N. • Pencil/Pen • PRIDE Cards • iPad 1. What are the 5 layers of the atmosphere? • Troposphere • Stratosphere • Mesosphere • Thermosphere • Exosphere 2. Can you come up with a fun acronym to remember the layers in order??

16. The Atmospheric LayersFoldable

18. Cut!

19. Atmospheric Layers The atmosphere is classified into five different layers: Exosphere Thermosphere Mesosphere Stratosphere Troposphere

20. Foldable • What do you need in it?? • For each layer you should include the following information: 1. What it’s name stands for. Ex: Tropo= “turning” or “change” 2. As you increase in altitude, temperature __________. 3. As you increase in altitude, pressure __________. 4. Two amazing facts about this layer.

21. Research • Text book: pages 4-9 OR • Use your online text book to fill in your foldable

22. Foldable DUE Tuesday • There will be a quiz over the material!!!!

24. Bell Work 2/13/14 • On your desk: • I.N. • Pencil/Pen • PRIDE Cards • iPad 1. What happens to the temperature in the Mesosphere as the altitude increases? • The temperature in the mesosphere decreases. 2. What happens to the temperature in the stratosphere as the altitude increases? • The temperature in the stratosphere increases.

25. Bell Work 2/14/14 • On your desk: • I.N. • Pencil/Pen • PRIDE Cards • Write down one amazing fact about: • Troposphere- • Stratosphere- • Mesosphere- • Thermosphere-

26. Troposphere • Tropo= “turning” or “change” • As you increase in altitude, temperature decreases. • As you increase in altitude, pressure decreases. • Facts: • 90% of the atmosphere’s total mass. • Weather occurs here. • Gases are constantly mixing.

27. Stratosphere • Strato– “layers” • As you increase in altitude, temperature increases. • As you increase in altitude, pressure decreases. • Facts: • Gases are layered and don’t mix • Ozone layer • Air is thin and contains very little moisture.

28. Mesosphere • Meso– “middle” • As you increase in altitude, temperature decreases. • As you increase in altitude, pressure decreases. • Facts: • Middle layer • Coldest layer (-93 degrees C)

29. Thermosphere • Thermo– “heat” • As you increase in altitude, temperature increases. • As you increase in altitude, pressure decreases. • Facts: • Atoms of N and O absorb high-energy solar radiation and release thermal energy. • 1,000 degrees C or higher But… it does not feel hot! (temp is different from heat) • Charged particles cause shimmering lights called auroras!

30. Exosphere • Exo – “outside” or “beyond” • As you increase in altitude, temperature decreases. • As you increase in altitude, pressure decreases. • Facts: • The transitional region between Earth’s atmosphere and outer space • Most satellites orbit in this layer.

31. What do I do now?? • Work on your Atmosphere foldable • Study it!! Quiz Tuesday! • If you are re-taking the Oceans Exam review foldable and study Guide

32. Bell Work 2/18/14 • On your desk: • I.N. • Pencil/Pen • PRIDE Cards 1. In which layers does the temperature decrease when altitude increases? • The Troposphere, Mesosphere, and Exosphere. 2. In which atmospheric layer is the ozone layer found? • The Stratosphere.

35. Atmosphere Worksheet Materials Needed: • Scissors • Colored pencils • Glue • pencil

36. On your desk: • iPad • Pencil/Pen • PRIDE Cards Bell Work 2/19/14 What two electives do you want to take next year? Give at least two reasons why you want to take each.

37. Atmosphere Video • BBC • http://www.youtube.com/watch?v=YJUq6b8_jr4

38. On your desk: • I.N. • Pencil/Pen • PRIDE Cards • Atmosphere worksheet Bell Work 2/20/14 1. Which layer protects the Earth from meteors? • Mesosphere 2. In which layer do space shuttles orbit? • Thermosphere

39. You are lying in a park. Your eyes are closed, and you feel the warmth of the sun on your face…. • Have you ever stopped to think that it takes a little more than 8 minutes for the energy that warms your face to travel from a star that is 149,000,000 km away?!

40. Where do we get our energy?? Yes…. The SUN!

41. How is energy transferred (moved) in the atmosphere?? • Radiation • Convection • Conduction

42. Energy Transfer in the Atmosphere The Earth receives energy from the sun by radiation. Radiationis the transfer energy as electromagnetic waves. DEMO!

43. Energy Transfer in the Atmosphere Only 2 billionths of the sun’s energy makes it to Earth! What happens to solar energy once it enters the atmosphere??? • 25% is reflected by clouds and air • 20% is absorbed by ozone, clouds and atmospheric gases. • 5% is reflected by the Earth’s surface • 50% is absorbed by the Earth

44. Energy Transfer in the Atmosphere Have you ever touched anything hot?? Conductionis the transfer of thermal energy between objects when their atoms or molecules collide. DEMO!

45. Energy Transfer in the Atmosphere When air molecules come into direct contact with the warm surface of Earth, thermal energy is transferred to the atmosphere.

46. Energy Transfer in the Atmosphere Convectionis the transfer of thermal energy by the movement of heated material from one place to another.

47. Fill in the blanks!!! As air is heated, it becomes less __________and rises. Cool air is denser, so it ______________. As the cool air __________________, it pushes the warm air up. The cool air is eventually _______________ by the Earth’s surface and begins to ________again. This cycle of warm air _________and cool air ________________causes a circular movement of air, called a convection current DEMO!

48. Energy Transfer in the Atmosphere As air is heated, it becomes less dense and rises. Cool air is denser, so it sinks. As the cool air sinks, it pushes the warm air up. The cool air is eventually heated by the Earth’s surface and begins to rise again. This cycle of warm air rising and cool air sinking causes a circular movement of air, called a convection current

49. Energy Transfer in the Atmosphere

50. http://www.cleanvideosearch.com/media/action/yt/watch?v=wr8Z4SCETPshttp://www.cleanvideosearch.com/media/action/yt/watch?v=wr8Z4SCETPs