We make slime using borax, water and food colouring.
We use chromatography to see what colours make up the ink in different coloured felt tip pens.
We add potassium iodide and lead(II) nitrate to the a Petri dish to see how quickly they diffuse.
We use a supersaturated solution of sodium ethanoate to demonstrate instant crystallisation.
We look at how different materials change when they are exposed to liquid nitrogen.
We release carbon dioxide from a fire extinguisher against a dark cloth to see what happens.
We use filtration and evaporation to separate out a mixture of water, sand and salt.
We look at how chemical filtration can be used to remove contaminants from water.