• Watch the lesson video.
• Get your class materials: download and open the class PDF file under “Exercise Files” in a new browser tab or in a PDF rendering program. Print it if you can.
• Read the main class reading.
• If you have time, work on the problems. Write your answers in the spaces. (If you did not print the materials, write your answers neatly on lined paper, with the date at the top.)
• Optional: watch the extension videos
  • Layers of the Earth
  • What makes volcanoes erupt?
• Optional: read the “Additional reading” pages in the class materials file.
• Optional: make one or more experiments from the “Experiment Zoo” in the class materials package.
• If there is a quiz after this lesson, take it to check yourself.

Take as long as you need. You can watch the video again any time.

If you printed the class material pages, add them to your Science Journal bundle for this Module.