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Section 2 Atmospheric Heating

Learn about the processes of radiation, thermal conduction, and convection in atmospheric heating. Understand the relationship between the greenhouse effect and global warming. Explore the energy balance in the atmosphere.

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Section 2 Atmospheric Heating

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  1. Lesson 2 Section2 Atmospheric Heating Do Now? • How is food heated in an oven? • Record your response in your science journal.

  2. Lesson 2 Section2 Atmospheric Heating Objectives • Summarize the processes of radiation, thermal conduction, and convection. • Explain the relationship between the greenhouse effect and global warming.

  3. Agenda • Today we will: • Day 1 • Complete a do now • Take notes. • Day 2 • Group and individual activity

  4. conduction • convection • radiation • greenhouse gases

  5. Lesson 2 Section2 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.

  6. Lesson 2 Section2 Atmospheric Heating

  7. Lesson 2 Section2 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.

  8. Lesson 2 Section2 Atmospheric Heating

  9. Lesson 2 Section2 Atmospheric Heating Energy in the Atmosphere, continued • Greenhouse Gases and Global WarmingSome 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.

  10. Exit Ticket • What are the 3 forms of energy in the atmosphere? Give an example of each.

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