Unit 2 Chemistry Lesson 1 States of Matter Essential Questions: 1.) How do you describe a solid? 2.) How do you describe a liquid? 3.) How do you describe a gas?
How Do You Describe A Solid? Particles in a solid are packed closely together that they can only vibrate and stay fixed in one position Types of solids Crystalline solid – sugar Amorphous solid - glass
How Do You Describe A Liquid? Particles in a liquid are packed closely together but can move around each other freely Properties of liquids Surface tension is an inward pull that brings molecules closer together. Viscosity describes how easily a liquid flows.
How Do You Describe A Gas? Particles in a gas spread out to fill the container.