Play with engineer husband, and completely non-scientific wife.
Ask questions like…”Is it an animal, plant or mineral?”
Think that a razor blade is not a mineral, and your husband maintains it is.
Think that rubber tires are made out of plastic, so it’s a mineral, and your husband says it’s rubber and so is a plant.
Whoever would call rubber tires a plant, anyways?
Laugh crazily over the fact that two people can be so opposite and still be so much in love!