3-COS-01
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Contents
Outcomes
- Pupils should understand how states of matter can be classified in terms of their characteristics e.g. compressibility, ease of flow, maintenance of shape and volume.
Specification References
- 5.7 Recall that particles in a liquid have a random motion within a close-packed structure.
- 5.8 Recall that particles in a solid vibrate about fixed positions within a close-packed regular structure.
Starter
Main Body of Lesson
- Pupils could test materials to come up with a list of the characteristics of the 3 states as shown below
- Use kinetic theory model and change between states
Plenary
- Could act out the molecular arrangement of a solid, liquid and gas (see additional notes)
Homework
- Questions sheet
- Research the 4th state of matter – Plasma
- Find out what the hardest solid known to man is. Extension- Explain what makes this substance so strong with reference to the molecular arrangement
- How the properties of liquids allow them to be used in simple hydraulic systems.
Additional Information
Resources Required
- Kinetic Theory model
- Circus of Solids, liquid and gases
- 1) Liquids (such as: milk, water, oil, honey)
- 2) Solids (such as: a block, a ball, a sponge, a feather, a brick and a duck)
- 3) Gases (such as: balloons filled with air and balloons with helium, a garbage bag with dry ice, blocked syringe with air, a flask with a small amount of vinegar and baking soda with balloon over mouth.
Textbook References
- Physics for You – pg 55-59
Website References
- www.ilpi.com/msds/ref/gifs/statesofmatter.gif (image of the three states of matter)
- www.harcourtschool.com/activity/states_of_matter/
Skills Addressed
Safety/Hazards
- Bowling ball is heavy
- Class II laser used in Cavendish experiment
Notes
- None
