I that the universal indicator has turned green, so I that the solution is neutral

I that the first substance does not flow so I that the sample is a solid.

I that the second substance flows and fills the bottom of the container so I that the substance is a liquid

I that the flame is yellow so I that the air hole is closed.

I that the air hole is fully open so I the flame is a roaring flame.

I that the hazard symbol shows that the chemical is toxic so I that I should not eat it.

I that the beaker is clean so I that I should put it away in the tray and not in the washing up.

I that the beaker is dirty so I that I should put it away in washing up tray not back in the racks.