A Crayon Rock Cycle- Metamorphic

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This is part 2 of the three-part "Crayon Rock Cycle" activity and must be done after part 1: Sedimentary Rocks. In this activity, learners explore how metamorphic rocks form. Learners start by creating a second sedimentary crayon rock. Learners place their rock in a tin foil boat, which is set on top of hot water. As the heat transfers from the water to the tin foil, this sedimentary rock becomes a metamorphic 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:
$1 - $5 per student

Age Range:
Ages 4 - adult

Resource Types:
Activity, Model


Materials List (per student)

  • Crayon Shavings from Sedimentary Rock
  • Aluminum Foil Square
  • Hot Pot with Water
  • Aluminum Foil Pans
  • Toothpicks


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

Informal Categories

  • Nature and Environment


Learning styles supported:

  • Involves hands-on or lab activities


This resource is part of:

Access Rights:

  • Free access