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Convection and the Mantle Chapter 3, Lesson 2. Radiation: Electromagnetic waves that directly...

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Convection and the Mantle Chapter 3, Lesson 2
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Page 1: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

Convection and the MantleChapter 3, Lesson 2

Page 2: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of radiation that is radiated through space to our planet without the help of fluids or solids. The energy travels through nothingness! Just think of it! The sun transfers heat through 93 million miles of space.

Radiation

Page 3: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

Because there are no solids (like a huge spoon) touching the sun and our planet, conduction is not responsible for bringing heat to Earth. Since there are no fluids (like air and water) in space, convection is not responsible for transferring the heat. So, radiation brings heat to our planet.

Page 4: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

Sunlight (radiation that warms Earth’s surface)

Heat felt from a flame, like a candle Heat felt from an open fire

Examples of Radiation

Page 5: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

Use your glossary. Write the definition for radiation. Make an Illustration.

Page 6: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

Conduction is the transfer of energy through matter from particle to particle. It is the transfer and distribution of heat energy from atom to atom within a substance. For example, a spoon in a cup of hot soup becomes warmer because the heat from the soup is conducted along the spoon.

Conduction

Page 7: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

Conduction is most effective in solids-but it can happen in fluids. Fun fact: Have you ever noticed that metals tend to feel cold? Believe it or not, they are not colder! They only feel colder because they conduct heat away from your hand. You perceive the heat that is leaving your hand as cold.

Page 8: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

A spoon in a pot of soup heating up (heat is moving from the hot pot and the hot soup to the spoon)

Ice melting in your hand (heat is moving from your hand to the ice cube)

Burning your hand by touching a pan from the oven (heat is moving from the hot pan to your hand)

Examples of Conduction

Page 9: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

Use your glossary. Write the definition for conduction. Make an Illustration.

Page 10: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

Convection is the transfer of heat by the actual movement of the warmed matter. Heat leaves the coffee cup as the currents of steam and air rise. Convection is the transfer of heat energy in a gas or liquid by movement of currents. (It can also happen is some solids, like sand.) The heat moves with the fluid.

Convection

Page 11: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

Consider this: convection is responsible for making macaroni rise and fall in a pot of heated water. The warmer portions of the water are less dense and therefore, they rise. Meanwhile, the cooler portions of the water fall because they are denser.

Page 12: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

Soup being heated on a stove (hot, less dense soup rises, cools off, becomes more dense, then is pulled down by gravity and heated again)

Heat warming your house (heat being transferred by air out of vents)

Heating cold hands by blowing hot air on them

Mantle of Earth being heated by core

Examples of Convection

Page 13: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

Use your glossary. Write the definition for convection. Make an Illustration.

Page 14: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

All Three!

Page 15: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

http://www.youtube.com/watch?v=RxYT_R4vjYQ

http://www.youtube.com/watch?v=wpDYHnTTatQ

Convection Currents in Lava Lamp

Page 16: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.
Page 17: Convection and the Mantle Chapter 3, Lesson 2.  Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of.

ISN p. 47-Divide your page into 4 large sections by drawing a + (do not include the margin) 1. Label 3 sections: Radiation, Conduction, Convection 2. In each section:

a. Write a definition USING THE GLOSSARY OF YOUR TEXTBOOK

b. Draw an example (illustration) c. Write an explanation of what is happening in your

picture 3. In the 4th section, illustrate how convection currents

work in the Mantle and write an explanation

Homework


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