(a) States of matter

Understand the three states of matter in terms of the arrangement, movement and energy of the particles

Understand the interconversions between the three states of matter in terms of:

• the names of the interconversions
• how they are achieved
• the changes in arrangement, movement and energy of the particles.

Understand how the results of experiments involving the dilution of coloured solutions and diffusion of gases can be explained

Know what is meant by the terms:

• solvent
• solute
• solution
• saturated solution.

Know what is meant by the term solubility in the units g per 100 g of solvent

Understand how to plot and interpret solubility curves

Practical: investigate the solubility of a solid in water at a specific temperature