Chemical and physical changes

We placed steel wool in a test tube over a beaker of water, what will happen?  Lots of predictions happening.

We also looked at our examples of physical and chemical changes.

Physical changes - making a salad, dissolving sugar in water, bending an object, cutting something, melting wax, chewing, cutting wood - sawdust, melting ice.

Chemical changes - baking soda and vinegar (gas produced), burning a candle (heat produced), rusting iron (colour change), burning paper or wood, digestion, cooking food, decomposition.