Lesson plan

Chemical reactions

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)
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.

My favourite combination for primaries/lower intermediates:
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

Grades taught
Gr K
Gr 1
Gr 2
Gr 3
Gr 4
Gr 5
Gr 6
Gr 7