Water Study Guide
Subject:
Chapter 3 Water and the Fitness of the Environment Key Concepts 3.1 The polarity of water molecules results in hydrogen bonding 3.2 Four emergent properties of water contribute to Earth's fitness for life 3.3 Dissociation of water molecules leads to acidic and basic conditions that affect living organisms Framework Water makes up 70% to 95% of the cell content of living organisms and covers 75% of the Earth's surface. its unique properties make the external environment fit for living organisms and the internal environments of organ- isms fit for the chemical and physical processes of life. Hydrogen bonding between polar water molecules creates a cohesive liquid with a high specific heat and high heat of vaporization, both of which help to regu-
