AC9S7U05 Year 7 Science

Content descriptor 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

Elaborations

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