7A - How the Earth's Core stays hot


  • Accretion 
  • Friction
  • Radioactive Decay
Review & Summarize:

    Please answer with complete sentences unless otherwise directed.

  • Identify and explain why the Earth keeps its accretion heat energy from when the Earth formed.
  • Demonstrate how you would describe the role of friction in Earth’s internal heat. 
  • Diagram with stick figures how you would explain this to another person.
  • Illustrate a practical way that humans use the same radioactive materials from the core to create usable heat energy


YouTube Link
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720p Video file size: 52mb