Summary Do two activities from the selection, to show chemical reactions. Choose food-related ones for a Chemistry of Cooking / Foods workshop. Science content Chemistry: Atoms, Molecules (3-7) Chemistry: Chemical Changes (2, 7) Activities in this lesson Elephant's toothpaste Baking soda and vinegar Rocket powered by baking soda and vinegar Soda drink Baking powder chemistry Cheese Hydrogen peroxide chemistry Carbonate precipitation Shining pennies Procedure Pair two or three activities for a lesson. Include molecule models for older primaries and up. A chemical reaction happens when we see a new product: a new state of matter (e.g. gas bubbles or a solid precipitating), or a new colour or smell. Examples of combinations: 1 Elephant's toothpaste demonstration - see a new state of matter and feel the temperature change. Baking soda demonstration - see a new state of matter and feel the temperature change. Molecular modelling of baking soda and vinegar. Rocket outside or Soda drink 2 Soda drink Molecular modelling of chemistry Rocket outside with same chemistry Cleaning pennies 3 Baking powder chemistry Molecular modelling of chemistry Rocket outside with same chemistry Grades taught Gr K Gr 1 Gr 2 Gr 3 Gr 4 Gr 5 Gr 6 Gr 7
