Grade 8 Science: Understanding Diffusion
Explore the concept of diffusion in chemistry with this Grade 8 science worksheet covering definitions, examples, and factors affecting the rate of diffusion.
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Grade 8 Science: Understanding Diffusion
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Read each question carefully and answer to the best of your ability. This worksheet will test your understanding of diffusion.
What is Diffusion?
Diffusion is the net movement of particles from an area of higher concentration to an area of lower concentration. This process occurs due to the random motion of particles and does not require external energy. It is a fundamental process in nature and is crucial for many biological and chemical systems.
1. Which of the following best describes diffusion?
Movement of particles from low to high concentration.
Movement of particles from high to low concentration.
Movement of particles that requires energy.
Movement of water molecules only.
2. Diffusion is the net movement of particles from an area of concentration to an area of concentration.
3. The random motion of particles is the primary cause of .
4. Diffusion requires energy to move particles across a membrane.
True
False
5. Give two examples of diffusion you might observe in everyday life.
Observe the diagram below showing the process of diffusion.
6. Based on the diagram, describe what is happening to the particles over time.
Match the term with its correct definition.
7. Concentration
a. Movement of particles from high to low concentration
8. Diffusion
b. The amount of solute dissolved in a solvent
9. Explain how temperature affects the rate of diffusion. Why does this happen?