2017 CPP and BSCS 1 RESPeCT Grade 2 Properties of Matter Module Properties of Matter Content Background Document 1. Introduction From the moment were born, each of us is on a quest to figure out our world. Its essential to our survival that we understand the way the world works. Even babies develop surprisingly sophisticated understandings based on such experiences as holding objects and putting them in their mouths , watching a ball dro p, observing plants and animals, playing peekaboo , and interacting with hot and cold things . In trying to understand and influence the world around them, children develop ideas about how the wor ld works and their role in it . Consequently, they begin school with their own set of ideas about the physical world. By paying attention to our students , taking their ideas seriously, and seeking to understand their thinking, we as teachers can build on what they already know. We can use these initial ideas as a foundation for developing remarkable understanding s, even in the earliest grades . In this document, well f ocus on two fundamental questions in physical science: What is everything made of? and How do things in the