OBJ: Given activity sheet and notes SWBAT explain conduction, convection and radiation with 70% accuracy. DN: Hand-in Layers of the Atmosphere College.

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Presentation transcript:

OBJ: Given activity sheet and notes SWBAT explain conduction, convection and radiation with 70% accuracy. DN: Hand-in Layers of the Atmosphere College Style Lab and ALQ scantron; HW check- Is CO 2 Increasing Earth’s Temperature Sheet ACT: 1] Introduction to Conduction Convection and Radiation 2] Heating & Cooling of Land (Soil) and Water Lab Prep 3] Read, text, p.42-45, Complete Heat Transfer Booklet HW: Complete Heat Transfer Booklet; Work on Meteorology Activity Sheets; Weather Exam, Wed. Oct 29.

Types of Heat Transfer Conduction: Heat transfer through solids by atom to atom collision; example: pot on stove, hold metal bar over campfire. Convection: Heat transfer through fluids (liquids, gases) due to differences in density (convection cell) –Warm: less dense, rises (hot air balloon) –Cold: more dense, sinks –Example: atmospheric circulation (winds, breezes),Ocean circulation, Earth Interior (mantle) circulation. Radiation: Heat transfer through space. Example: tanning by sun’s radiation, heat (infrared rays) from fireplace, campfire, stove.

Heat Transfer : movement of energy from place to place.

CONDUCTION

CONVECTION

RADIATION

TODAY, COPY THESE NOTES... WATER SOIL Heat Lamp

FRIDAY YOU GET: You are given a blank data table to collect your data and blank graph paper to plot your data. The graph will be a double line graph (1 st line = water; 2 nd line = soil) with one axis temperature and the other axis time. You are given 20 minutes to collect your heating and cooling data for soil (land) and water. You will be given 5 minutes to discuss and set up your soil versus water experiment. We will start at Time = 0, record the temperature. Then I will start the stopwatch on the smartboard and every minute I will announce the time. You will record your temperature & time data. At 20 minutes, the experiment is over. Plot your results and start the lab write up. READY?

FRIDAY’S LAB

DATA TABLE TEMPERATURE (LIGHT ON) - HEATINGTEMPERATURE (LIGHT OFF) - COOLING TIME (min)SANDWATERTIME (min)SANDWATER 0ºC 1 11ºC TODAY, COPY THESE NOTES...

DATA TABLE FRIDAY YOU GET:

TIME (minute) TEMPERATURE (ºC) TODAY, COPY THESE NOTES... WATER SOIL

FRIDAY YOU GET:

Lesson Notes Land (sand): heats up and cools _______ Water (ocean): heats up and cools ______ Dark: heats up fast (absorbs heat energy) Light: cools (reflects heat energy) Smooth surfaces: cools (reflects heat energy) Rough surfaces: heats up (absorbs heat energy)

Sea & Land Breezes