CER Boiling Water

CER

If you pour cold water into a hot metal pan, the water will absorb heat energy from the pan. Will the water come to the same temperature of the hot pan? What is the process? If you put the pan on the stove top, the stove top will heat both the pan and the water inside the pan, but it does not heat the two materials at the same rate.

Some indigenous cultures heat water by putting hot stones into water that is in a skin bag or wooden bowl. 

CER Question

When you put water into a hot metal pan of equal mass, why does the pan cool down more than the water heats up?

Or: Why does it take a greater volume of stones to heat water to boiling than the volume of the water itself?

Open Ended

Make a Claim

Your claim should be a response to the question stated above.

CER Question

When you put water into a hot metal pan of equal mass, why does the pan cool down more than the water heats up?

Or: Why does it take a greater volume of stones to heat water to boiling than the volume of the water itself?

Open Ended

Cite Evidence  Identify data or knowledge that support your claim

CER Question

When you put water into a hot metal pan of equal mass, why does the pan cool down more than the water heats up?

Or: Why does it take a greater volume of stones to heat water to boiling than the volume of the water itself?

Open Ended

Use Reasoning  Justify how the data and knowledge count as evidence toward supporting the claim.

CER Question

When you put water into a hot metal pan of equal mass, why does the pan cool down more than the water heats up?

Or: Why does it take a greater volume of stones to heat water to boiling than the volume of the water itself?

Open Ended

Share your written argument so that it can be critiqued by one or more classmates. Listen closely and record their feedback. What flaws or weaknesses did your peers identify in your argument? If a counterargument was proposed, do you agree or disagree with the reasoning?