Unit 9 Lesson 5 What Are Conductors and
Insulators?
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 9 Lesson 5 What Are Conductors and Insulators?
9.5 What are Conductors and Insulators?
Objectives:
• Identify materials that conduct heat well.
• Determine which materials can be used to
prevent the transfer of energy as heat.
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 9 Lesson 5 What Are Conductors and Insulators?
Go with the Flow … of Heat
• A material that allows heat to move through it
easily is called a conductor.
• Solids usually are better conductors than liquids or
gases.
• Metals are good conductors of heat.
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 9 Lesson 5 What Are Conductors and Insulators?
Go with the Flow … of Heat
• Describe how the heat moves.
Copyright © Houghton Mifflin Harcourt Publishing Company
Cork
Unit 9 Lesson 5 What Are Conductors and Insulators?
Turn the Heat Around
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 9 Lesson 5 What Are Conductors and Insulators?
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 9 Lesson 5 What Are Conductors and Insulators?
Turn the Heat Around
• Materials that do not conduct heat well are called
insulators.
• Oven mitts and gloves are insulators.
• Gases, such as air, are good insulators of heat.
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 9 Lesson 5 What Are Conductors and Insulators?
• Rubber also is a good insulator of heat and
electricity.
• Most wires are covered with rubber to insulate
them and keep people safe.
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 9 Lesson 5 What Are Conductors and Insulators?
Turn the Heat Around
Copyright © Houghton Mifflin Harcourt Publishing Company
Exit Slip-Thermos Label
1
2
3
-Vacuum
-Reflection
-Glass Lining
Unit 9 Lesson 5 What Are Conductors and Insulators?
Heat Proofing a Home
• There are several ways to heat proof a home.
• When the weather is hot, you want to keep the
heat from coming into your home.
• When the weather is cold, you want to keep the
heat from leaving your home.
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 9 Lesson 5 What Are Conductors and Insulators?
Heat Proofing a Home
• Describe how to make this home lose less heat.
Copyright © Houghton Mifflin Harcourt Publishing Company
How does insulating a house saves money?
Unit 9 Lesson 5 What Are Conductors and Insulators?
Heat Proofing a Home
• Why are basements usually cool year-round?
• How might you eliminate the need to air-condition
your house, even in the hottest weather?
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 9 Lesson 5 What Are Conductors and Insulators?
Turn the Heat Around
Copyright © Houghton Mifflin Harcourt Publishing Company
Fluffy Fiber
Foam
Exit Slip
Unit 9 Lesson 5 What Are Conductors and Insulators?
Turn the Heat Around
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 9 Lesson 5 What Are Conductors and Insulators?
Turn the Heat Around
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 9 Lesson 5 What Are Conductors and Insulators?
Go with the Flow … of Heat
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 9 Lesson 5 What Are Conductors and Insulators?
Copyright © Houghton Mifflin Harcourt Publishing Company