1. Particle size
John likes sugar in his tea. He has two cubes in one cup of tea!
Abi likes sugar in her tea. She has one teaspoon of granules every time!
What is the difference?
The sugar will dissolve faster in Abi’s tea. This is because the smaller particles have a larger surface area!

2. Stirring
Temperature
Stirring helps to mix substances together and makes things happen faster!
Things happen faster when they are hotter!
For example, more substance can dissolve at higher temperatures and the dissolving happens faster!
For example, substances will dissolve faster if they are stirred.

3. Filtration
Filtration is a technique used to remove an insoluble solid from a liquid or solution.
The insoluble solid is removed by the filter paper and we then call it the residue.
The liquid or solution that passes through the filter paper is collected in the flask and we call this the filtrate.

4. Pestle and Mortar
Water bath
Safety goggles
Tongs
Watch glass
Evaporating basin
Clamp
Boss

5. Beaker
Test tube
Bunsen Burner
Conical flask

6. Filter funnel
Measuring cylinder
Thermometer
Tripod

7. Retort stand
Gauze
Balance
Spatula