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Polarity Lesson

Grade Level:
11
Subject:
Chemistry
Topic:
SCH3U: Polarity
Objective:
Students will explore polarity through a like-dissolve-like activity and polarity attraction activity.
Prep:
Print enough handouts and bring materials needed.
Materials:
Magic Milk:
250mL - 500mL 2% milk
250mL - 500mL 10% half and half
2 Clear glass baking dishes of same or similar size
Food colouring (at least 2 colours) preferably in squeeze/drip format
Several Q-Tips (min 4) (or similar - coon
swabs will work)
Dish detergent (1oz is sufficient)
Small glass or beaker (100mL beaker or shot glass size container or small
bowl/dish)
Balloon Pop:
Several Balloons (min 5, at least 2 for each fruit)
Orange peel (best to use a section with flesh removed at least 2cm in
width)
optional: Lemon peel, lime peel, mandarin peel, grapefruit peel, other
citrus fruit peel, a non-citrus fruit peel (ie apple)