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Welcome and Introductions

Welcome and Introductions. Introduction activity: Goals/ Outcomes Agenda: -Welcome-Reflection on Variables - Assessment prototype - Investigation 3: 3 parts -Investigation 4: 2 parts -Investigation 5: 3 parts. Weather and Water Investigation #3 Seasons and Sun.

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Welcome and Introductions

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  1. Welcome and Introductions Introduction activity: Goals/ Outcomes Agenda: -Welcome-Reflection on Variables -Assessment prototype -Investigation 3: 3 parts -Investigation 4: 2 parts -Investigation 5: 3 parts

  2. Weather and WaterInvestigation #3Seasons and Sun PART 1: HOW MUCH SUNSHINE?

  3. Quick Write • What causes seasons? • Focus on Sunshine • I’ve heard it said that Dec 21st is the shortest day of the year. Why would someone say that? Is there a longest day of the year? • Calculating Hours of Sunlight for Your Location • Using the information we just discussed, as a team predict how many hours of sunlight we will have today? Explain your estimate. • Given the sunrise and sunset times, develop a strategy to calculate daylight hours • Discuss an example • Graph and Analyze Daylight Hours for Berkeley • Bar vs. Line • Reading • Wendy and Her Worldwide Weather Watchers, pre/post questions

  4. Weather and WaterInvestigation #3Seasons and Sun PART 2: SUN-EARTH SYSTEM

  5. Discussion Questions • Transparency 3 • Sun-Earth Model • Revolve, Rotation, North Star, Hours of Daylight, Equinox, Solstices, Seasons, ellipse, tilt, perihelion, aphelion • Reading • Seasons (diagram) • Multimedia • Seasonal Changes (lab notebook pg 9) • Assessment • Response Sheet-Seasons and Sun

  6. Weather and WaterInvestigation #3Seasons and Sun PART 3: SUN ANGLE AND SOLAR HEATING

  7. Ask • What kind of weather do you associate with summer? What is it about summer that makes it hotter? What happens to produce more heat? • Beam Spreading • Flashlight Circles, Beam Spreading (lab notebook pg 13, Globe demonstration • Assess Progress • Mid-summative Exam 3 • Self-Assessment • Quick Write (part 1), Seasons and Sun (part 2), Mid-summative assessment • Review and discuss how their thinking has changed and what they did in class to change their thinking

  8. Weather and WaterInvestigation #4Heat Transfer PART 1: HEATING THE EARTH

  9. Ask • Do you think the surface of the earth affects how hot the air gets? What is an earth material? • Earth Materials Investigation • Set up the earth materials, discuss predictions (#1-4 temperature questions) • Collect data, graph data (within the axes!) • Revise thinking, discuss (#5,6 temperature questions) • Radiation, Differential Heating • Multimedia • Heat and Energy Animation • Reading • Thermometer: A Device to Measure Temperature, pre/post question

  10. Weather and WaterInvestigation #4Heat Transfer Part 2: CONDUCTION

  11. Ask: • Why do your feet feel hot on a sidewalk on a hot day? • Energy Transfer Challenge • Inquiry vs. Semi-guided • How did heat transfer from the hot water to the cold water? • Explain Conduction/Multimedia • Record notes in lab notebook pg 17 (Heat Conduction) • Discuss series of Energy Transfers • White board flow chart • Ask: • Did you every reach for a metal spoon that was in a pot of cooking soup? How did the handle get hot when it hasn’t been in the soup or fire? • Conduction Investigation • Bowtie Pasta Video • Reading • Heating the Atmosphere, questions following • Assess • Mid-summative Exam 4

  12. Weather and WaterInvestigation #5Convection PART 1: DENSITY OF FLUIDS

  13. Density demonstration bottles • Why do the liquids behave this way? • Layering Inquiry • I have 4 liquids for you to investigate. The challenge is to layer all four liquids in a section of straw. • How is it that some salt solutions can be heavy and some light if they are made with the same materials? • Which is heavier gold or feathers? • Foam and Beans Demo • If both cups are the same size, how can one be heavier? • Introduce density • Determine density of the salt solutions • Assess • Response Sheet - Convection • Reading • Density, post reading questions

  14. Weather and WaterInvestigation #5Convection PART 2: CONVECTION IN WATER

  15. Review methods of heat transfer • Light, radiant energy, visible light, UV, and infrared, conduction, warmer to cooler • Another method for liquids • Water Inquiry • Challenge: Make layers with plain water of different temperatures • Make predictions in lab notebook • Successfully layer • Observe again after 5 minutes-Why did this happen? • Heat the bottom of the vial and explain what is happening • Introduce Convection • Reading • Convection, pre/post questions • Assess • Collect Layering Hot and Cold Water Sheets

  16. Weather and WaterInvestigation #5Convection PART 3: CONVECTION IN AIR

  17. Ask: • If the sun shines on a parking lot, and the blacktop absorbs some of the radiant energy, what might happen to the part of the atmosphere close to the parking lot? • Convection Chamber Demonstration • Explain set-up and what it is attempting to model • Record observations • Convection Cell • Multimedia • Convection animation • Assess • Collect Convection Chamber sheetfrom the lab notebook • Assess • Mid-summative Exam 5

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