Materials can be changed through physical and chemical processes
Materials can be changed through physical and chemical processes.
The BC Science K–9 (redesigned curriculum) outcome for Grade 2 says: “Materials can be changed through physical and chemical processes.” This Fieldbook unit teaches it hands-on, with everyday materials and a printable teacher guide and student sheet for every lesson.
Kitchen Chemistry for Families Grades K–5
Four famous kitchen experiments, done properly: a homemade lava lamp, oobleck, a baking soda volcano and invisible ink. Each one starts with a real question, works with things from your cupboard, and leaves your child able to explain what happened.
- What makes a volcano erupt? 45 min
Kids test baking soda and vinegar to find out where the fizz comes from, build the classic kitchen volcano, then open bottles of sparkling water to see what really drives an eruption: gas trapped under pressure. They finish able to explain how the model is like a real volcano, and how it isn't.
- How do spies write secret messages? 45–60 min
Kids write invisible messages in baking soda, then reveal them by painting on grape juice or turmeric water, which change colour where the baking soda is. They finish able to explain that acids and bases make some colours change, and why a plain-water message stays hidden.
More British Columbia Grade 2 science outcomes we teach
Every British Columbia Grade 2 science curriculum outcome we teach
Every unit matched to British Columbia's curriculum · All places and curricula
Three full lessons, free
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