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Lesson 12 of 21

States of Matter

Read through the material below, then test your understanding.

Module Lessons

Scientific Principles

Lesson Overview

Matter in plumbing systems exists in three distinct states: solid, liquid, and gas. Understanding how water transitions between these states is vital for preventing burst pipes, managing high-pressure steam, and ensuring system safety.

Learning Objectives

Identify the molecular properties and characteristics of solids, liquids, and gases

Explain the six phase changes of matter and their practical plumbing applications

Describe the volumetric and density changes that occur when water freezes and boils

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