Concepts to focus and include

• Heat is ALWAYS transferred from an object at a higher temperature to an object at a lower temperature until thermoequilibrium is reached (at the same temperature)
• Exothermic - system giving off heat and its temperature is lowered (negative)
• Endothermic - system taking in heat and its temperature is raised (positive)
• Both of these processes occur at the same time.
• Understand heat changes due to state changes Specfic heat capacity- besides the googled definition, a conceptual definition (sponge and scouring pad)
• Scenarios I have gone over:
• Why do you feel hot in the summer
• Why do you feel cold in the winter
• The 4 different materials overnight (heat transfer with your hands versus thermometer
• Hydroflask ($30 water bottle)
• Cooking an egg in aluminum foil versus water

You are hot.

Sweat comes out of your pores.

The sweat evaporates.

This is an endothermic process.

Your body is giving off heat.

This is an exothermic process.

Your body cools down.

Why do you sweat? G1

You have two blocks, one heavy and shiny and one light and dull.

Ice was placed on both blocks.

It has a lower specific heat capacity.

It has a higher specific heat capacity.

Heat is transferred from the block to the ice.

This is an exothermic process.

The ice melts.

This is an endothermic process.

The metal block got colder.

The ice did not melt.

This is an insulator.

Block Party G2

Why does a steam burn hurt so badly? (G3)

Please explain your answers in this space. Make sure you include heat transfer, phase changes, endothermic, and exothermic.

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Concepts to consider: What is the phase change that is occuring? Indicate the heat transfer process. What role does your body have in this?

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How Does a Hydroflask work? (G3)

Make sure you are able to talk about the thermochemical processes that is going on to keep it cold.

You are hot.

Sweat comes out of your pores.

The sweat .evaporates

This is an endothermic process.

Your body is giving off heat.

This is an exothermic process.

Your body cools down.

Why do you sweat? G2

You have two blocks, one heavy and shiny and one light and dull.

Ice was placed on both blocks.

It has a lower specific heat capacity.

It has a higher specific heat capacity.

Heat is transferred from the block to the ice.

This is an exothermic process.

The ice melts.

This is an endothermic process.

The metal block got colder.

The ice did not melt.

This is an insulator.

Block Party G2

Why does a steam burn hurt so badly? (G3)

Please explain your answers in this space. Make sure you include heat transfer, phase changes, endothermic, and exothermic.

​

Concepts to consider: What is the phase change that is occuring? Indicate the heat transfer process. What role does your body have in this?

​

​

​

​

How Does a Hydroflask work? (G3)

Make sure you are able to talk about the thermochemical processes that is going on to keep it cold.

You are hot.

Sweat comes out of your pores.

The sweat evaporates.

This is an endothermic process.

Your body is giving off heat.

This is an exothermic process.

Your body cools down.

Why do you sweat? G3

You have two blocks, one heavy and shiny and one light and dull.

Ice was placed on both blocks.

It has a lower specific heat capacity.

It has a higher specific heat capacity.

Heat is transferred from the block to the ice.

This is an exothermic process.

The ice melts.

This is an endothermic process.

The metal block got colder.

The ice did not melt.

This is an insulator.

Block Party G3

Why does a steam burn hurt so badly? (G3)

Please explain your answers in this space. Make sure you include heat transfer, phase changes, endothermic, and exothermic.

​

Concepts to consider: What is the phase change that is occuring? Indicate the heat transfer process. What role does your body have in this?

​

​

​

​

How Does a Hydroflask work? (G3)

Make sure you are able to talk about the thermochemical processes that is going on to keep it cold.