Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Atmospheric Heating Do Now? How is food heated in an oven?

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Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Atmospheric Heating Do Now? How is food heated in an oven? Record your response in your science journal. Lesson 2

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Atmospheric Heating Objectives Summarize the processes of radiation, thermal conduction, and convection. Explain the relationship between the greenhouse effect and global warming. Lesson 2

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Agenda Today we will: Day 1 –Complete a do now –Take notes. Day 2 –Group and individual activity

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu conduction convection radiation greenhouse gases

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Atmospheric Heating Energy in the Atmosphere Radiation: Energy Transfer by Waves The Earth receives energy from the sun by radiation. Radiation is the transfer of energy as electromagnetic waves. Conduction: Energy Transfer by Contact Thermal conduction is the transfer of thermal energy through a material. Convection: Energy Transfer by Circulation Convection is the transfer of thermal energy by the circulation or movement of a liquid or gas. Lesson 2

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Atmospheric Heating Lesson 2

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Atmospheric Heating Energy in the Atmosphere, continued The Greenhouse Effect and Life on Earth The greenhouse effect is the process by which gases in the atmosphere absorb thermal energy and radiate it back to Earth. Lesson 2

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Atmospheric Heating Lesson 2

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Atmospheric Heating Energy in the Atmosphere, continued Greenhouse Gases and Global Warming Some scientists think that an increase of greenhouse gases in the atmosphere may be the cause of global warming. The Radiation Balance: Energy In, Energy Out The amount of energy Earth receives and the amount of energy returned to space must be approximately equal. Lesson 2

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Exit Ticket What are the 3 forms of energy in the atmosphere? Give an example of each.