Trivia Question of the Day

Trivia Question of the Day

Unit 3: Insolation and the Seasons

Topics to be Covered Include… • Energy Transfer Processes • Transfer of Energy in Earth’s Atmosphere • Layers of the Atmosphere • Greenhouse Effect • Angle of Insolation (Latitude) • Seasons

KWHL

Let’s Brainstorm… • Despite the ads, what causes M&M’s to melt in your hands?? • How does it feel to walk barefoot on pavement on a hot, sunny day? • Why can sitting near a fire warm us? • Any other examples?

Heat Transfer ScenesActivity

Bill Nye Time! • Bill Nye Video 1 • Bill Nye Video 2 • Bill Nye Video 3

Trivia Question of the Day

Heat Transfer ProcessesStations Activity • Complete each of the 3 stations, including answering all of the questions, to receive full credit!

Challenge Questions • Which two types of heat transfer processes require matter to travel through? Conduction, Convection • Which heat transfer process is the only one that does NOT require matter to travel through? Radiation

Lesson 2: Energy Transformations 3 States (Phases) of Matter exist… What are they? Solid Liquid Gas State (Phase) changes of matter CAN occur when changing the amount of heat added to or taken away from an object

When adding (absorbing) heat…we move from a solid  liquid  gas

When taking away (releasing) heat…we move from a gas  liquid  solid

Challenge Question • If we add or take away 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) 4. When boiling begins, all heat absorbed is used to vaporize the liquid WITHOUT any temperature change (latent heat of vaporization) 3. When solid is completely melted, heat absorbed raises the temperature until reaching the boiling point

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) 4. The liquid becomes a solid and all heat is released WITHOUT any temperature change (latent heat of fusion is released) 3. When the gas is completely a liquid, heat released cools the temperature until reaching the freezing point

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

Trivia Question of the Day