What is temperature? Any ideas? Think, pair, share (1min)
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2 things you need to know: 1.All things are made of atoms or
particles that are too small to see
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2. The particles are always moving in all directions.
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Particle Movement in a Solid, Liquid, Gas Students as particles
demo
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Back to Temperature The measure of kinetic energy of the
particles in an object Temperature = Kinetic energy of
particles
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Measuring Temperature 2 ways: 1.Fahrenheit Scale: At what temp
does H 2 O freeze?________ At what temp does H 2 O boil?____
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Measuring Temperature 2. Celcius Scale: At what temp does water
freeze?_____ At what temp does water boil?_____
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What is heat? Think about this : What happens to your hand when
you grab a cold drink out of the fridge?
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Heat The transfer of energy from one object to another Flows
from warmer to cooler objects
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Lets go back to this situation Knowing what you know about
heatthink about this: What happens to your hand when you grab a
cold drink out of the fridge?
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Midpoint Review How are temperature and kinetic energy related?
Heat is transferred how?
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Heat Transfer There are 3 types: Conduction Convection
Radiation
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Conduction Transfer of energy by collisions of molecules in a
material (2 things touching) Usually happens in solids
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Conduction
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Which spoon would you rather cook with? metal wooden Metal is a
good conductor
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Insulators Some things are bad conductors They can be used as
insulators Sweaters Blankets Plastics Wood rubber
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Convection Heat is transferred between objects of different
temperatures Most common in gases and liquids
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Examples of Convection Birds can float with out flapping wings
Heating your home
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Radiation Transfer of heat energy by waves
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Examples of Radiation Heat from fire Microwave heating
food
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Heat BrainPop BrainPop
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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_