Snakes and ladders – chemical and physical change 20 – Finish! 19 What type of change is fermentation? Burning sugar. 11 12 A puddle ‘disappearing’ on a warm day. 10 Burning magnesium to produce magnesium oxide. 9 Mixing salt with water. 1 Melting candle wax. What type of change is combustion? What type of change is rusting? Juice turning into ice lollies. 6 Making popcorn. What type of change is dissolving? 5 4 Baking cupcakes. Melting sugar. 15 7 3 A type of change that is not easily reversed. What type of change is sublimation? A type of a change that is easily reversed. What type of change is condensation? 16 14 13 8 2 A type of change that forms no new substances. 17 18 Solid changing to a liquid. Freezing liquid nitrogen. Rules of the game Players must state whether the square they land on refers to a physical or a chemical change. Miss a turn for a wrong answer. If a player lands on a ladder they can move up if they get the type of change correct. Miss a turn if the answer is incorrect. When a player lands on a snake they can remain on that square if they get the type of change correct. If the answer is incorrect, they must go down the snake. Counters © www.teachitscience.co.uk 2012 19800 Page 1 of 2 Snakes and ladders – chemical and physical change Answers Burning sugar. chemical A puddle ‘disappearing’ on a warm day. physical Mixing salt with water. physical What type of change is fermentation? chemical Burning magnesium to produce magnesium oxide. chemical What type of change is condensation? physical A type of change that forms no new substances. A type of change that is irreversible. physical chemical Melting candle wax. physical What type of change is sublimation? physical A type of a change that is easily reversed. What type of change is combustion? physical chemical What type of change is rusting? chemical Baking cupcakes. chemical Making popcorn. chemical Melting sugar. physical Juice turning into ice lollies. physical What type of change is dissolving? physical Solid changing to a liquid. Freezing liquid nitrogen. physical physical © www.teachitscience.co.uk 2012 19800 Page 2 of 2
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