1. Ms. Longo Earth Science Weather & Water

2. 9/14

3. Agenda Vocabulary Air Experiment

4. Back to School night 10 pts. Extra credit if your parent/guardian comes to this class They will follow your school schedule. Please give them a copy.

5. Do Now Notebook maintenance Check and discuss your answers from NB sheet 2 (Air Investigation) Each group will share one question

6. Vocabulary Every object and substance in the world is made of matter. The 3 states of matter are solid, liquid, and gas. The amount of matter in an object is its mass. Mass is the measurement of the amount of matter in an object or a substance such as air. Mass is measured in grams.

7. Vocabulary One way to confirm that something has mass is to weigh it. Weight is pull or force between Earth and the matter in an object or substance. Weight depends on gravity, so weight can vary slightly at different places on Earth and can vary greatly on different planets. In outer space, away from planets, objects become weightless, but their mass does not change.

8. Discussion Questions Does air has mass? Is there any matter in a volume of air?

9. Air Experiment Materials: 2 L plastic bottle Pump Electronic balance

10. Air Experiment Using these materials what how would we conduct an experiment to find out if air has mass? Discuss with your group

11. Air Experiment Measure mass of bottle and pump Record data Pump bottle full of air Record data

12. Air Experiment Analyze the results: Pumping air into the bottle forces more air in, so the air in the bottle is compressed. Compression pushes the particles closer together. There is more air (more air particles) in the volume inside the bottle now than there was in the unpumped bottle.

13. Results continued A bottle of compressed air weighs more than a bottle of uncompressed air because it has more particles in the bottle. More weight = more mass. Therefore air has mass, so air is matter.

14. Record your findings Summarize the finding of the experiment in your NB. Your answer might look something like this: We showed that air has mass, because when we __________, we collected evidence that _________.

15. 9/15

16. Agenda Review and record findings from Air Experiment Big Ideas Vocabulary FQ

17. Record your findings Summarize the finding of the experiment in your NB. Your answer might look something like this: We showed that air has mass, because when we __________, we collected evidence that _________.

18. Big Ideas Label a new page Big Ideas Save 2 pages Bookmark the page Copy the next points onto this page

19. Big Ideas Air has mass and takes up space. Air is made of many tiny particles, which are constantly in motion with a lot of space between them. Air can compress and expand.

20. Vocabulary Define these words in your own words: Air Compress Expand Mass Matter Particle Pressure State Weight

21. Revisit Focus Question 2.1 What is Air? Draw a line of learning, today’s date Add new ideas Discuss your answer with your table group Add any new ideas to your page

22. Weather & Water Book Look at the cover, table of contents, glossary and index. Turn to “A Thin Blue Veil” p. 23 Look at the images

23. Weather & Water Book Turn to page 23 “A thin Blue Veil” Look at the images The upper image is a photo taken by space-shuttle astronauts. The shuttle was orbiting in Earth’s atmosphere at the time and shows only a small portion of Earth.

24. Weather & Water Book Turn to page 23 “A thin Blue Veil” Look at the images The lower image is a photo of Earth taken by Apollo 17 Astronauts in 1972. The astronauts were on the way to the moon at the time.

25. Prepare to answer these questions based on the images Where is the atmosphere? Can you see the atmosphere in the image of Earth taken from space? Can you see the atmosphere in the image of Earth taken from the shuttle? What structures can you see in the atmosphere? Why can’t you see the atmosphere in the image taken from space?

26. FQ 2.2 What is the atmosphere? Please write your first answer.

27. 9/16

28. Agenda Vocabulary FQ 2.1 Revisit Big Ideas FQ 2.2

29. Do Now Notebook Maintenance Continue with vocabulary definitions

30. 9/17

31. Agenda Atmosphere Introduction Textbook Posters Reading

32. Do Now Notebook Maintenance Continue with vocabulary definitions Yesterday’s weather

33. Atmosphere The Earth is surrounded by a layer of air. The layer of air is called Earth’s atmosphere. The atmosphere lies between Earth‘s surface (solid and liquid) and the vastness of space. We terrestrial animals live most of our lives at the bottom of the atmosphere, surrounded by the invisible mixture of gases called air.

34. Earth’s Atmosphere Posters Look at the small version of the posters in the “A Thin Blue Veil” reading p. 24-5 Look at the vocabulary, and how the atmosphere is organized.

35. Earth’s Atmosphere The atmosphere has different layers that have different properties at different elevations. The lowest layer of the atmosphere is called the troposphere. Most of Earth’s air is found here, and Earth's weather happens in the troposphere. The layer above the troposphere is the stratosphere. You may have heard of the ozone layer. The ozone layer is found in the stratosphere.

36. Earth’s Atmosphere The mesosphere is above the stratosphere. This is the layer in which meteoroids entering Earth’s atmosphere become meteors- the streaks of light that are sometimes called “shooting stars.” The thermosphere is next. Scientist don’t know very much about the thermosphere except that it has high temperature, but very little air.

37. Earth’s Atmosphere The layer farthest away from Earth’s surface is the exosphere. It is a relatively thick layer, but it contains very little air. It is the transition layer between Earth’s atmosphere and outer space.

38. Earth’s Atmosphere Look at the picture on the right of p. 25 The layer of the atmosphere that extends from Earth's surface up to about 10-24 km is the troposphere. The average is 15 km

39. Earth’s Atmosphere The troposphere represents only about 2% of the height of the atmosphere, but about 85% of Earth’s air is found here. This is the most complex part of the atmosphere, and a lot of activity takes place here.

40. Objects in the Atmosphere Scientists send several kinds of devices into the atmosphere to study it. People and other living organisms can be found at different levels in the atmosphere. The poster shows the elevations in the atmosphere where some of these objects and organisms can be found.

41. Objects in the Atmosphere Space shuttle (now retired) Peak of Mount Everest International Space Station Jetliner (airplanes) Meteors Weather balloons Storm clouds

42. Notebook sheet 3 Some of these questions have been studied by atmospheric scientists. We may be able to find answers to some of these questions by doing a little research. We have two sources of information to look into: the online activity and an article about the atmosphere.

43. Reading P. 20 “What’s in the Air?”

44. 9/18

45. Agenda Atmosphere Composition chart Earth’s Atmosphere Questions Online Activity Vocabulary Focus question revisit Notebook review for test

46. Do Now Notebook Maintenance Open NB to weather report pages

47. Atmosphere Composition Draw this chart in your NB. Add one important fact about nitrogen and one important fact about oxygen next to the chart

48. Earth’s Atmosphere Questions Answer questions 1-6 Pass to the edge of your table when everyone is done. Reading p. 20 Posters p. 24-25

49. Elevator to Space Copy the data table

50. Elevator to Space kmAltitudeTemperatureDensity of AtmosphereMass of Atmosphere (%)Gasses 0.0.4.9 2.3 5.3 8.9 11.0 20.0 39.8 85.0 371.0