trivia question of the day
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Trivia Question of the DayTrivia Question of the Day
Unit 3: Insolation and the Unit 3: Insolation and the SeasonsSeasons
Topics to be Covered Include…Topics to be Covered Include…
Energy Transfer ProcessesEnergy Transfer Processes Transfer of Energy in Earth’s AtmosphereTransfer of Energy in Earth’s Atmosphere Layers of the AtmosphereLayers of the Atmosphere Greenhouse EffectGreenhouse Effect Angle of Insolation (Latitude)Angle of Insolation (Latitude) SeasonsSeasons
KWHLKWHL
Let’s Brainstorm…Let’s Brainstorm… Despite the ads, what causes M&M’s to melt in Despite the ads, what causes M&M’s to melt in
your hands??your hands??
How does it feel to walk barefoot on pavement on How does it feel to walk barefoot on pavement on a hot, sunny day?a hot, sunny day?
Why can sitting near a fire warm us?Why can sitting near a fire warm us?
Any other examples?Any other examples?
Heat Transfer ScenesHeat Transfer ScenesActivityActivity
Bill Nye Time!Bill Nye Time!
Bill Nye Video 1
Bill Nye Video 2
Bill Nye Video 3
Trivia Question of the DayTrivia Question of the Day
Heat Transfer ProcessesHeat Transfer ProcessesStations ActivityStations Activity
Complete each of the 3 stations, including Complete each of the 3 stations, including answering all of the questions, to receive full answering all of the questions, to receive full credit!credit!
Challenge QuestionsChallenge Questions
Which two types of heat transfer processes Which two types of heat transfer processes require matter to travel through?require matter to travel through?
Conduction, ConvectionConduction, Convection
Which heat transfer process is the only one Which heat transfer process is the only one that does NOT require matter to travel that does NOT require matter to travel through?through?
RadiationRadiation
Lesson 2: Lesson 2: Energy TransformationsEnergy Transformations
3 States (Phases) of Matter3 States (Phases) of Matter exist… What are they? exist… What are they?SolidSolid
LiquidLiquid
GasGas
State (Phase) changes of matter State (Phase) changes of matter CANCAN occur when occur when changing the amount of heat added to or taken away changing the amount of heat added to or taken away from an object from an object
Challenge Question
If we add or take away heat energy, will a phase change ALWAYS occur?
NO!But Why?
Specific Heat: The energy needed to raise the temperature of
1kg of a substance by 1°C, without changing its state (phase) of matter
ESRT, p. 1
Now, let’s get back to phase changes…
We have special names for the heat needed to have phase changes… Latent Heat: Energy needed to change a substance
from one physical state to another Latent Heat of Fusion: Energy needed to
change a substance from a solid to a liquid Latent Heat of Vaporization: Energy needed to
change a substance from a liquid to a gas
When adding (absorbing) heat…
1. Temperature of the solid rises until reaching the melting point
2. When melting begins, all heat absorbed is used to melt the solid WITHOUT any temperature change (latent heat of fusion)
3. When solid is completely melted, heat absorbed raises the temperature until reaching the boiling point
4. When boiling begins, all heat absorbed is used to vaporize the liquid WITHOUT any temperature change (latent heat of vaporization)
When taking away (releasing) heat…
1. Temperature of the gas cools until reaching the boiling point
2. The gas condenses to a liquid and all heat is released WITHOUT any temperature change (latent heat of vaporization is released)
3. When the gas is completely a liquid, heat released cools the temperature until reaching the freezing point
4. The liquid becomes a solid and all heat is released WITHOUT any temperature change (latent heat of fusion is released)
Challenge Questions Is latent heat absorbed or released when changing
from…Liquid to Vapor (Gas)?
Absorbed
Vapor (Gas) to Liquid? Released
Liquid to Solid? Released
Solid to Liquid? Absorbed
Energy TransformationsEssential Vocabulary Activity
Using the provided vocabulary words, definitions, construction paper, colored pencils/markers, scissors, and glue, create “brain-friendly” index cards that include
Side 1: The word
Side 2. The definition on the right AND
a drawing or visual example on the left
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