Summary Do two activities from the selection, to show chemical reactions. Science content Chemistry: Atoms, Molecules (3-7) Chemistry: Chemical Changes (2, 7) Activities in this lesson Baking powder chemistry Cheese Soda drink Hydrogen peroxide chemistry Elephant's toothpaste Procedure Pair two activities for a lesson. Include molecule models for older primaries and up. Notes Tyee Ks did baking powder chemistry then Elephant's toothpaste. Tyee 1-3s did baking powder chemistry (with worksheet and molecule models for classes with 3s), then cheese. Tyee 4-7s did soda drink including graphing and molecule models, then hydrogen peroxide chemistry with a molecule model demonstration. Grades taught Gr K Gr 1 Gr 2 Gr 3 Gr 4 Gr 5 Gr 6 Gr 7 Teaching Site Tyee Elementary
