Chapter Overview
Everything around us is made up of matter, which exists in different states. The three main states of matter are solid, liquid, and gas. Matter can change from one state to another through heating or cooling. This chapter explains the characteristics of each state and how they transform under various conditions.
Important Keywords
- Matter: Anything that has mass and occupies space.
- Solid: A state of matter with a fixed shape and volume.
- Liquid: A state of matter with a fixed volume but no fixed shape.
- Gas: A state of matter with no fixed shape or volume.
- Melting: The process of changing from solid to liquid.
- Freezing: The process of changing from liquid to solid.
- Evaporation: The process of changing from liquid to gas.
- Condensation: The process of changing from gas to liquid.
- Sublimation: The direct change from solid to gas without becoming liquid.