Day 123 – Bulbs in Parallel

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Science 9 – Students continued with their circuits. Today’s results were really surprising to everyone.  By adding another bulb in parallel, the bulbs didn’t go dimmer!  This was a shock to everyone.  I tried to help them to understand what was happening by using an analogy of blowing through one small straw vs blowing through three small straws at once.  Unfortunately I didn’t actually have the straws and many kids thought three small straws would be harder to blow through.

Note to self: have a box of stir stick straws in class next year.

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