EASY
Lower Secondary Stage 8
IMPORTANT
Earn 100

What are the strengths and weaknesses of the particle theory model?

Important Questions on Elements, Compounds and Mixtures

EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 1>Q 3

Describe how would you change the model shown in the figure below, to show the solid with strong forces or the one with weak forces?

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EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 1>Q 4

Use particle theory to explain why liquids can flow?

EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 1>Q 4
Use particle theory to explain why gases do not have a fixed shape or volume?
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 2>Q 5
Name the changes in state where the particles gain kinetic energy.
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 2>Q 5
Name the changes in state where the particles lose kinetic energy.
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 2>Q 6
Use particle theory to explain what happens when steam cools down to form water.
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 2>Q 6
Use particle theory to explain what happens when liquid water changes into ice.
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Using particle theory to explain gas pressure>Q A1
Your teacher will give you a container with some small balls in it. This is a model, and the balls represent gas particles. Shake the container, so the balls move around. What do you observe?