What do a whale, a bee, a blade of grass, and a human all have in common? This hands-on Montessori sorting activity introduces children to the 7 characteristics shared by all living things, using the memorable acronym MRS GREF as an organisational framework. What's included:7 category header cards, each with the characteristic name and its description: Move, Reproduce, Sense, Grow, Respire, Excrete, FeedReal photographic picture cards to sort under each categoryControl chart for independent self