The question prompted experiments at home, with bowls placed in the refrigerator, the freezer and out in the kitchen. It made Judy Hallinen, her grandmother, laugh and it illustrated a point. “These ...

72 complete, stand-alone STEM lessons across Kindergarten through 5th Grade — each with a word-for-word substitute script, materials list, student page, and a notes-back-to-teacher page — so an ...