B2 1.4

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Why are molecules in liquids and gases able to move around randomly?
Because of the energy they have.
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What is diffusion?
The spreading out of particles of a gas, or any other substance in solution.
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When does diffusion occur more rapidly?
When there is a larger difference in concentration.
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What is the difference in concentration between two areas called?
The CONCENTRATION GRADIENT
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What is an example of diffusion in plant cells?
Diffusion of Carbon Dioxide into plant cells for photosynthesis.
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Card 2

Front

What is diffusion?

Back

The spreading out of particles of a gas, or any other substance in solution.

Card 3

Front

When does diffusion occur more rapidly?

Back

Preview of the front of card 3

Card 4

Front

What is the difference in concentration between two areas called?

Back

Preview of the front of card 4

Card 5

Front

What is an example of diffusion in plant cells?

Back

Preview of the front of card 5

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