Phases of Matter Unit - Interactive Worksheets, Activities, & Assessments

Grade Levels
6th - 9th, Homeschool
Formats Included
  • PDF
  • Activity
28 pages
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Includes interactive worksheets, hands-on activities, assessments and exit cards on how matter behaves in a solid, liquid and gas phase and the relation between phases, temperature and heat energy.

Complete activity directions, lab worksheets and answer keys are included!

Use these materials to fully direct or supplement a middle school or high school unit on phases of matter:

Let’s Explore:

1. Lab Activity: What Are the Properties of Solids, Liquids and Gases?

• Exit Card 1

2. Links to free animations/videos on phase changes

• Post Animations: Check for Understanding questions

3. Interactive Worksheet: How do particles behave in a solid, liquid and gas phase?

• Exit Card 2

4. Links to free videos on Temperature

5. Lab Activity: What’s the Temperature?

• Exit Card 3

6. Assessment: How is temperature related to particle movement?

7. Worksheet: Celsius or Fahrenheit?

• Exit Card 4

8. Worksheet: How do we describe matter changing phases?

• Exit Card 5

9. Interactive Worksheet: At what temperatures does water change phase?

• Exit Card 6

10. Final Assessment

Total Pages
28 pages
Answer Key
Teaching Duration
2 Weeks
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to see state-specific standards (only available in the US).
Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed. Emphasis is on qualitative molecular-level models of solids, liquids, and gases to show that adding or removing thermal energy increases or decreases kinetic energy of the particles until a change of state occurs. Examples of models could include drawings and diagrams. Examples of particles could include molecules or inert atoms. Examples of pure substances could include water, carbon dioxide, and helium.
Determine the meaning of symbols, key terms, and other domain-specific words and phrases as they are used in a specific scientific or technical context relevant to grades 6–8 texts and topics.
Follow precisely a multistep procedure when carrying out experiments, taking measurements, or performing technical tasks.


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