Chapter 6: Section 2 Temperature What is temperature?  Any ideas?  Think, pair, share (1min)

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Presentation transcript:

Chapter 6: Section 2 Temperature

What is temperature?  Any ideas?  Think, pair, share (1min)

2 things you need to know: 1.All things are made of atoms or particles that are too small to see

 2. The particles are always moving in all directions.

Particle Movement in a Solid, Liquid, Gas  Students as particles demo

Back to Temperature The measure of kinetic energy of the particles in an object Temperature = Kinetic energy of particles

Measuring Temperature  2 ways: 1.Fahrenheit Scale: At what temp does H 2 O freeze?________ At what temp does H 2 O boil?____

Measuring Temperature 2. Celcius Scale: At what temp does water freeze?_____ At what temp does water boil?_____

What is heat?  Think about this :  What happens to your hand when you grab a cold drink out of the fridge?

Heat  The transfer of energy from one object to another  Flows from warmer to cooler objects

Let’s go back to this situation Knowing what you know about heat…think about this:  What happens to your hand when you grab a cold drink out of the fridge?

Midpoint Review  How are temperature and kinetic energy related?  Heat is transferred how?

Heat Transfer  There are 3 types:  Conduction  Convection  Radiation

Conduction Transfer of energy by collisions of molecules in a material (2 things touching) Usually happens in solids

Conduction

Which spoon would you rather cook with? metal wooden Metal is a good conductor

Insulators  Some things are bad conductors  They can be used as insulators  Sweaters  Blankets  Plastics  Wood  rubber

Convection  Heat is transferred between objects of different temperatures  Most common in gases and liquids

Examples of Convection Birds can float with out flapping wings Heating your home

Radiation  Transfer of heat energy by waves

Examples of Radiation  Heat from fire  Microwave heating food

Heat  BrainPop BrainPop

Quick Review  Heat is transferred from ______ things to _______things.  What are the 3 types of heat transfer?  This is more common in solids____  This is more common in liquid/gas_

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