Mid-Topic Test: Topic 4, Particles and Reactions

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Homework: Particles and Reactions – Levels 5–7
States of Matter
Use your scientific knowledge and understanding to produce a poster identifying,
describing and explaining the three states of matter.
Task
Use your scientific knowledge and understanding to design a poster about the three
states of matter. In your poster:

use detailed scientific knowledge to describe the arrangement and
movement of particles in each state


list some properties of each state of matter
use detailed scientific knowledge to explain the properties of each state of
matter
discuss the forces of attraction between the particles in each state of
matter.

Mark scheme
Level
You should:
5
describe the arrangement and movement of the particles in each
state of matter
explain what diffusion is and why it happens in gases
explain why gases can be compressed and why solids do not flow.
6
use detailed scientific knowledge to describe the arrangement and
movement of the particles in the three states of matter and use
this to explain the properties of each state
explain why mercury is used in thermometers.
7
explain why water can evaporate from puddles even on cold days
use detailed scientific knowledge to compare diffusion in liquids
and gases
compare the forces of attraction between particles in the three
states of matter.
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