1. Unit 7 Lesson 1 What Is Heat?
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2. Unit 7 Lesson 1 What Is Heat?
Florida Benchmark
SC.4.P.11.1 Recognize that heat flows from a hot object to a cold object and that heat flow may cause materials to change temperature.
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3. Unit 7 Lesson 1 What Is Heat?
The Energy of Heat
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 higher temperature to one with a lower temperature.
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4. Heat on the Move! Heat can move in different ways.
Unit 7 Lesson 1 What Is Heat?
Heat on the Move!
Heat can move in different ways.
Conduction is the transfer, or movement, of heat between two objects that are touching.
When you hold a snowball, heat from your hand is conducted to the snow.
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5. Unit 7 Lesson 1 What Is Heat?
Heat on the Move!
Convection is the transfer of heat within a liquid or a gas.
Hot air in a hot-air balloon moves from the burner throughout the balloon by convection.
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6. Unit 7 Lesson 1 What Is Heat?
Feeling Radiant!
Radiation is the transfer of heat without matter to carry it.
Heat from the sun radiates through space and the atmosphere before it warms Earth.
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