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Page 1: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Copyright © Houghton Mifflin Harcourt Publishing Company

Page 2: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Night vision!

Copyright © Houghton Mifflin Harcourt Publishing Company

Page 3: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Night vision!

Copyright © Houghton Mifflin Harcourt Publishing Company

Page 4: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

The Energy of Heat

Copyright © Houghton Mifflin Harcourt Publishing Company

• Heat is the energy that moves between objects of different temperatures.

• The difference in temperature makes the energy move.

• Heat moves from an object with a highertemperature to one with a lower temperature.

Page 5: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Heat on the Move!

Copyright © Houghton Mifflin Harcourt Publishing Company

• Heat can move in different ways.

• Conduction is the transfer, or movement, of heat between two objects that are touching. It can also occur within an object.

Example :When you hold a snowball, heatfrom your hand is conductedto the snow.

Page 6: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Heat on the Move!

Copyright © Houghton Mifflin Harcourt Publishing Company

• Heat can move in different ways.

20 C 0 C

Loses heat energy

gains heat energy

Page 7: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Heat on the Move!

Copyright © Houghton Mifflin Harcourt Publishing Company

• Heat can move in different ways.

Page 8: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Heat on the Move!

Copyright © Houghton Mifflin Harcourt Publishing Company

Page 9: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Heat on the Move!

Copyright © Houghton Mifflin Harcourt Publishing Company

•Convection is the transfer of heat within a liquid or a gas.

Page 10: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Copyright © Houghton Mifflin Harcourt Publishing Company

Page 11: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Copyright © Houghton Mifflin Harcourt Publishing Company

Page 12: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Heat on the Move!

Copyright © Houghton Mifflin Harcourt Publishing Company

• Particles in liquids and gases move easily, and they take heat with them.

• Movement of particles is from down to up.

Page 13: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Heat on the Move!

Copyright © Houghton Mifflin Harcourt Publishing Company

• Hot air in a hot-air balloon moves from the burner throughout the balloon by convection.(from down to up)

Page 14: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Heat on the Move!

Copyright © Houghton Mifflin Harcourt Publishing Company

Page 15: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Heat on the Move!

Copyright © Houghton Mifflin Harcourt Publishing Company

Page 16: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Feeling Radiant!

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• Radiation is the transfer of heat without matterto carry it.

• Heat from the sun radiates through space and the atmosphere before it warms Earth.

• Radiation of heat is done in all directions.

Page 17: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Copyright © Houghton Mifflin Harcourt Publishing Company

Page 18: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Copyright © Houghton Mifflin Harcourt Publishing Company

How is heat transferred?

Page 19: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Copyright © Houghton Mifflin Harcourt Publishing Company

How is heat transferred?

Page 20: Unit 9 Lesson 3 What Is Heat? · 11/9/2019  · Unit 9 Lesson 3 What Is Heat? ... •The difference in temperature makes the energy move. •Heat moves from an object with a higher

Unit 9 Lesson 3 What Is Heat?

Copyright © Houghton Mifflin Harcourt Publishing Company