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ROAD MAP:

1- Lesson overview

2- Pre-assessment

3- Investigate

4- Individual Work (Scientists)

6- Choice board

7- Post-assessment

8- Reflection

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Objectives:

Identify and describe Heat transfer modes

Terminologies:

conduction

convection

radiation

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Which of the following is an example of conduction?

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b)  metal spoon getting hot when placed in a pot of boiling water

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Which of the following is an example of convection?

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b)  metal spoon getting hot when placed in a pot of boiling water

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Which of the following is an example of radiation?

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b)  metal spoon getting hot when placed in a pot of boiling water

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Question: What factors do you think influence how quickly a chemical reaction transfer heat?

Discussion: Share thoughts with a partner and then with the class.

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Use the simulation to answer the following questions:

https://phet.colorado.edu/sims/html/energy-forms-and-changes/latest/energy-forms-and-changes_en.html

Questions to Explore:

1. How does temperature change in different materials (e.g., water, iron) when heated?

2. How do conduction, convection, and radiation manifest in the simulation?

3. What role do these mechanisms play in the context of chemical reactions?

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MCQ:

1. What type of energy transfer occurs when you touch a hot stove?

A) Conduction

B) Convection

C) Radiation

D) None of the above

Essay Question: Discuss how energy transfer via conduction, convection, and radiation can affect the temperature change in an exothermic reaction. Provide examples to support your argument.

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MCQ:

1. Which of the following processes involves warm air rising and cold air sinking?

A) Conduction

B) Convection

C) Radiation

D) Sublimation

Essay Question: Explain how the principles of conduction, convection, and radiation are demonstrated in a chemical reaction, such as mixing baking soda and vinegar. Include observations about temperature changes and energy transfer.

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MCQ:

1. In an endothermic reaction, the temperature of the surroundings:

A) Increases

B) Decreases

C) Remains the same

D) Fluctuates

Essay Question: Describe an endothermic reaction you have studied and explain how energy transfer occurs. Use specific examples to illustrate your points, focusing on temperature changes and any observable effects.

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IXL | Compare thermal energy transfers | 8th grade science

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Improve your science knowledge with free questions in “Compare thermal energy transfers” and thousands of other science skills.

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write below a) increase/decrease in each

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write below a) increase/decrease in each

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Quizizz: You’ve been invited to a Quizizz activity

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Research Project: Investigate a real-world example of conduction, convection, or radiation in a chemical reaction (e.g., cooking).

Create a Video: Explain conduction, convection, and radiation using a chemical reaction example.

Art Project: Design a poster showing energy transfer mechanisms during endothermic and exothermic reactions.

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1. What did I learn?

2. What was the most challenging part?

3. What can I improve next time?