6th - 8th Grade Module 1 Concept 2

Cycle 1

How can we explain changes in state of matter?
Cycle Summary

In the previous concept, students learned that all matter is made of elements and compounds. They found out that the structure substances at the atomic level affects the properties of matter we observe on the macroscale (bench level).

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Session 1
Elicit

Students consider how a corn kernel can transform into popcorn.

Engage

Students formulate a list of properties of solids, liquids, and gases.

Session 2
Explore

Students model molecular motion of liquids at different temperatures.

Session 3
Explore

Students collect data from an investigation on melting point and boiling point.

Session 4
Explain

Students construct their understanding of particle motion, temperature, and state of a pure substance when energy is added or removed.

Session 5
Elaborate

Students apply what they have learned about thermal energy and molecular motion to the water cycle.

Session 6
Evaluate

Students develop a model that predicts and describes changes in particle motion, temperature, and state of a substance when thermal energy is added or removed.
Students complete a formative assessment.