Diffusion: Movement of Particles
This worksheet explores the concept of diffusion, the passive movement of particles from an area of higher concentration to an area of lower concentration, suitable for Grade 7 Science students.
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Diffusion: Movement of Particles
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Diffusion is the movement of particles from an area of:
Low concentration to high concentration
High concentration to low concentration
High pressure to low pressure
Low pressure to high pressure
2. Which of the following is an example of diffusion?
Water boiling in a pot
A ball rolling down a hill
The smell of perfume spreading in a room
A car driving on a road
3. Diffusion is a process, meaning it does not require energy.
4. The rate of diffusion is affected by temperature; higher temperatures lead to a rate of diffusion.
5. In diffusion, particles move until they are evenly distributed, reaching a state of .
6. Diffusion only occurs in gases.
True
False
7. The larger the difference in concentration, the slower the rate of diffusion.
True
False
8. Describe how diffusion allows oxygen to enter your bloodstream from your lungs.
9. Observe the diagram below showing particles in two different areas. Draw an arrow on the diagram to show the direction of diffusion.
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