Physics - Matter and Materials - Changes in matter (physical vs chemical) - Changed or Not?
Show 8 before/after pairs and ask 'Can you get the original back?' For each pair: (1) Ice → Water (Yes/No), (2) Paper → Ash (Yes/No), (3) Folded paper → Unfolded paper (Yes/No), (4) Egg → Cooked egg (Yes/No), (5) Sugar → Sugar in water (Yes/No), (6) Iron → Rust (Yes/No), (7) Stretched rubber band →