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A Crayon Rock Cycle - Igneous

Source Institutions

    Children's Museum Of Houston

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A Crayon Rock Cycle - Igneous

This is part 3 of the three-part "Crayon Rock Cycle" activity. Before starting this section, learners must have completed part 1: sedimentary rock and part 2: metamorphic rocks. In this activity, learners explore how igneous rocks form. Learners place crayon shavings on an aluminum foil square and either place them outside in the sun or place them in the oven until liquefied. After the shavings harden, learners will have formed an igneous rock. Once their rock is formed, learners should draw their rock in their science journal. The activity guide contains step-by-step instructions, a background "Did You Know" section, an early childhood adaption section, and an extension "challenge" section.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
10 to 30 minutes

Estimated Materials Cost:
$5 - $10 per student

Age Range:
Ages 4 - adult

Resource Types:
Activity, Model


Materials List (per student)

  • Crayon shavings from sedimentary rock
  • Aluminum Foil Square
  • Sun (or oven)


  • Earth and Space Science
    • Earth Structure
      • Rocks and Minerals
    • Earth's History
      • Geologic Time
  • Physical Sciences
    • Heat and Thermodynamics
      • Heat and Temperature

Informal Categories

  • Nature and Environment


Learning styles supported:

  • Involves hands-on or lab activities


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Access Rights:

  • Free access



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