Fun experiments to show what makes something a solid, liquid or gas. What liquid never mixes with water? Which solids dissolve and which don’t, and can we use this information to separate mixtures? How do gases move and how much room do they take up?

Reversible and irreversible changes are dramatically demonstrated using demonstrations of melting and burning. Finally we ask if a self-inflating pillow is really such a good idea, and Adrian reveals his mystery materials super power!