Crystals Lesson Plan

Instructor: Tammy Galloway

Tammy teaches business courses at the post-secondary and secondary level and has a master's of business administration in finance.

With your guidance and this lesson plan, students will learn about the different types of crystals, their bonds, and structures. They will watch a video, participate in discussion questions, complete an activity, and take a quiz.

Learning Objectives

After this lesson, students will be able to:

  • identify different types of crystals
  • discuss the different types of crystal bonds
  • describe the structures of crystals


60 minutes

Curriculum Standards

  • CCSS.ELA-Literacy.RST.11-12.4

Determine the meaning of symbols, key terms, and other domain-specific words and phrases as they are used in a specific scientific or technical context relevant to grades 11-12 texts and topics.

  • CCSS.ELA-Literacy.RST.11-12.7

Integrate and evaluate multiple sources of information presented in diverse formats and media (e.g., quantitative data, video, multimedia) in order to address a question or solve a problem.

  • CCSS.ELA-Literacy.RST.11-12.9

Synthesize information from a range of sources (e.g., texts, experiments, simulations) into a coherent understanding of a process, phenomenon, or concept, resolving conflicting information when possible.


  • Hard copies of the Crystal: Definition, Types, Structure & Properties lesson and the corresponding lesson quiz
  • Use an online word search application and create a document with the vocabulary terms below. Enter the definition of the term as the clue and the associated term as the find; make a class set.
  • Index cards
  • Large container


  • covalent crystals
  • covalent bonds
  • ionic crystals
  • ionic bonds
  • metallic crystals
  • molecular crystals
  • crystal systems
  • cubic crystals
  • hexagonal crystals
  • tetragonal crystals
  • orthorhombic crystals
  • trigonal crystals
  • monoclinic crystals
  • triclinic crystals


  • Begin the lesson by asking students to discuss what they know about crystals.
  • Now explain that they will explore different types, bonds, and structures of crystals in this lesson.
  • Distribute a copy of the Crystal: Definition, Types, Structure & Properties lesson, play the video, pause at 01:13, then start the following discussion:
    • Define a crystal and identify a familiar example.
    • What determines the formation of a crystal?
    • List the types of crystals.
  • Now restart the video, play until the end, then pose the following:
    • Diamonds are categorized as what type of crystal?
    • Identify the well-known characteristic of a diamond.
    • How is table salt classified?
    • Discuss the characteristics of metallic crystals.
    • The prior three crystals are hard in nature; explain why rock candy and the crystalline sugar candy on a stick are edible.
    • Explain the difference between orthorhombic and trigonal crystals.
  • Next show the lesson quiz and require students to write the answers, then review.

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