States of Matter: Basics

Topics

• Atoms
• Molecules
• States of Matter

Description

Heat, cool and compress atoms and molecules and watch as they change between solid, liquid and gas phases.

Sample Learning Goals

• Describe characteristics of three states of matter: solid, liquid and gas.
• Predict how varying the temperature or pressure changes the behavior of particles.
• Compare particles in the three different phases.
• Explain freezing and melting with molecular level detail.
• Recognize that different substances have different properties, including melting, freezing and boiling temperatures.