Give children as many real, hands-on experiences as possible before introducing abstract concepts like naming and classification. With a concrete experience “in hand,” Montessori children are inspired to learn everything about everything! Observing classroom plants and animals is a natural way to explore the world. Float-and-sink will whet their appetite for more hands-on physical science! With the right presentation, access to materials, and an opportunity for follow-up research, children will begin to comprehend the laws of physics and even the nature of the universe.