Science / Year 7 / Science understanding / Chemical sciences

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Curriculum content descriptions

use particle theory to describe the arrangement of particles in a substance, including the motion of and attraction between particles, and relate this to the properties of the substance (AC9S7U05)

Elaborations
  • using and constructing models, diagrams or virtual simulations to represent changes in particle arrangement as substances change state
  • relating motion and energy of particles to distances between particles of the same substance in different states
  • comparing attractive forces in the solid, liquid and gaseous states of the same substance and relating this to relative position and movement of particles
  • examining how the changing motion and energy of particles is affected by the amount of heat energy absorbed or released
  • comparing the properties of different states of matter and explaining differences using particle theory
  • investigating properties of materials such as density, melting point and compressibility and explaining these in terms of particle arrangement
  • explaining the process of diffusion in a liquid and a gas in terms of particles
General capabilities
  • Critical and creative thinking Critical and Creative Thinking
ScOT terms

States of matter

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