Last week’s work looked at solubility -whether or not a substance will dissolve. We –

• tested different substances to see if they were soluble in water
• agreed rules so that we can observe what is soluble and what is not
• compared solubility in cold and warm solvents
• used our knowledge of particles to explain why more solute can dissolve in warm solutes
• compared solubility in different solvents – water and white spirit
• Made a hot saturated solution so that we could use it to start growing crystals

Still waiting for someone in the class to post a photo so that the class can be allowed to photograph experiments again

jw