Exploratorium
Give and Take
Heat-sensitive liquid crystal sheets are available in a variety of sizes and temperature ranges. Purchase a class set of hand-held sheets and color half of each with a silver permanent marking pen. Learners of light can hold them under a...
Curated OER
Elementary Concepts in Heat
Third graders read a thermometer with accuracy, record observations and data, and infer conceptual meaning. They integrate mathematical charting and graphing skills to organize their data. They explore what happens when they touch or use...