We were in the Learning Lab on Tuesday the 21st of March.  We were learning about states of matter (Solid, liquid and gasses).  We wanted to investigate how temperature altered the state of matter.

There were two groups, 1 group making scrambled eggs and the other group were melting chocolate and making toast.

When we made scrambled egg we turned liquid into solid this is an irreversible change because we could not get the liquid back.  Turing bread into toast was also an irreversible change.

When we used heat to melt chocolate into a liquid and let it cool back into a solid, we experienced a reversible change.

By Oliver