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# Change of State

## Explore the energy required to convert a substance between gas, liquid, and solid

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Change of State

by EPISD Physics //at grade
Covers heat of fusion, heat of vaporization, and gives example calculations for thermal transfer during phase changes.
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## Nov 24: E- Change of State

by Duane Dippel //at grade
Covers heat of fusion, heat of vaporization, and gives example calculations for thermal transfer during phase changes.
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## Change of State

by Suzanna Barnhart //at grade
Covers heat of fusion, heat of vaporization, and gives example calculations for thermal transfer during phase changes.
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## Change of State, Latent Heat, and Heating Curves

by Daniel Edwards-Lolos, MS //at grade
Covers heat of fusion, heat of vaporization, and gives example calculations for thermal transfer during phase changes.
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• Video

## Phase Change Diagrams

by Mark Holmstrom //at grade
An explanation of the names of different changes of state and how they look on a heat v temperature graph. Video courtesy of Mark Rosengarten.
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