Use complete sentences, providing your choice, your evidence, and your reasoning

Question

Use complete sentences, providing your choice, your evidence, and your reasoning.

(3 point) Consider a sample of carbon dioxide solid at room temperature and pressure. This substance will change from solid to a gas under these conditions. Which of the following is correct about this change of state?

A) melting, exothermic

B) melting, endothermic

C) sublimation, exothermic

D) sublimation, endothermic

(3 points) Referring to the Next Generation Science Standards, identify a Physical Science disciplinary core idea that is supported by the material covered in sections 12.4 and 12.5. and justify your choice.

(2 point) Identify a misconception around your chosen disciplinary core idea.

(6 points) Describe/outline a demonstration or hands-on activity that would support student learning around this misconception. What aspect(s) of this activity do you think will be especially helpful in addressing your chosen misconception?

Explanation / Answer

a)

this will be sublimation, since it goes fro solid to gas, without forming liquid

therefore, ignore a and b

it will be endothermic, since solid requires heat/energy to form gas

then, choose D

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