Physics Unit: Gizmos, Gadgets, and Simple Machines

2 Responses

  1. Julie says:

    You know, I realize as I look at your post, that I have no marbles around for the kids to try and use…must get some!!

  2. Julie says:

    You know, I realize as I look at your post, that I have no marbles around for the kids to try and use…must get some!!

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