AC9S7U05 Year 7 Science

This Content Descriptor from Year 7 Science provides the specific knowledge and skills students should learn. Use it to plan lessons, create learning sequences, and design assessments that align with the Australian Curriculum v9.

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

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

Related Achievement Standards