| Method |
Precise Learning Objective |
Linked |
Question / Activity
(Designed for maximum working out) |
Stepping Stones |
Pitstop Check
(Thinking Map) |
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Concentration is the number of a particular type of particle in a volume of space. |
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What is concentration? Dilute Potassium permanganate in large beaker.
Observe the colour becomes 'weaker' (less concentrated) |
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Diffusion is the movement of a substance from a region of higher concentration to a region of lower concentration. |
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What is diffusion? |
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Particles in a fluid are always moving. |
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What happens to the particles in a fluid? observe the diffusion of food coloring in M&M's in the water
observe how long it takes for potassium permangement to spread out in cold and warm water in a petri dish |
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Horizontally, half the particles will be moving to the left and half to the right. |
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Half of a large number is more than half of a smaller number.
So more particles will travel from a larger number of particles (high concentration), than are replaced by the smaller number moving form the smaller number of particles (lower concentration). |
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Why do particles move from an area where there are more to where ther |
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