PARTICLES

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PARTICLES

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What can experiments tell us about particles?
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(No Transcript)
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The blocks are the same size, why are their
masses different?

• Experiment 1

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The blocks are the same size, why are their
masses different?

• All the blocks are the same size.
• We have to decide why each one has a different
  mass.

Add your own clip art or diagram?
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Method

• This is how I will measure the blocks
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• Equipment
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Put in your own step-by-step instructions and a
list of equipment.
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Results
Click right on graph to put in your own results ?
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This is why we think each block has a different
mass.
Write your own explanation about the particles in
the blocks.
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Putting one small coloured crystal into a beaker
of cold water and one into a beaker of hot water

• Experiment 2

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Solids, liquids and gases
Get three diagrams to show how the particles are
arranged in solids, liquids and gases.
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Dissolving
Describe what happens when a solid dissolves.
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Equipment list

• Equipment

• Risk and precautions

Add a list of equipment and describe the risk.
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Method

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Describe your method as step-by-step instructions.
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Observations

• What happened in cold water

• What happened in hot water

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Conclusion
Explain the reasons why.
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Trying to fit a metal bar into a gauge before and
after strong heating.

• Experiment 3

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Describe what happens to particles as they get
warmer.
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Explain why solids expand as they get warmer.
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Opening a perfume bottle at arms length

• Experiment 4

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Describe what happened
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Conclusion

• Explain why this happened in terms of particles.

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Heating one end of a metal rod that has
paperclips attached by petroleum jelly

• Experiment 5

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Equipment

• Equipment list

• Hazards and precautions

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Results
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Conclusion

• Describe what happened

• Explain why using your ideas about particles

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trying to depress the plungers of three sealed
syringes, one containing a solid, one a liquid
and one a gas

• Experiment 6

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Objectives of this experiment
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Conclusion

• Description (observations)

• Explanation

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Adding small weights, one at a time, to a thin
wire suspended from a clamp until it snaps

• Experiment 7

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Why dont the particles in a solid just fall
apart?
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Custard!

• Solids, liquids gases. How do we know which is
  which?

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Describe the custard assignment
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Solids, liquids gases
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Results
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A rule for solids
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A rule for liquids
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A rule for gases
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END