Interactive, scaffolded model
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Students view a computer model of molecules in a solid, a liquid, and a gas and then discuss how this model helps describe the macroscopic properties of each state
Students will be able to:
Suppose you were a molecule of liquid in a liquid in a glass. Someone takes that glass and puts it in the freezer. After a while the liquid freezes. How does what you see and feel change?
Could there be a compressible liquid? Explain your answer using molecules/atoms in your answer.
The compressibility of a substance indicates the space, or lack of it, between the atoms or molecules of various states of matter.
Additional Related Concepts
This activity also belongs to two different larger modules: Atoms in Motion
States of Matter
From the AAAS Benchmarks:
The larger unit Atoms in Motion makes the following macro-micro link: the hot air balloon is not just hot air. Without the fabric of the balloon to contain the hot air, it would not fly. Without being able to carry liquid fuel, a hot air balloon ride would be short. Students extend their studies to other states of matter.