Revision as of 02:46, 15 May 2008

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

• Measurement
• Observation
• Calculation

Safety/Hazards

• Bowling ball is heavy
• Class II laser used in Cavendish experiment

Notes

• None