The document instructs students to get their science notebooks from the cart and wait for further instructions from their teacher at Otto Middle School in the Lansing School District.

1. Please get your science notebook from
the cart and wait for instructions.
LANSING SCHOOL DISRICT
OTTO MIDDLE SCHOOL

3. • What do we know about the center of the
earth?
• Is it hot or cold?
• Can we climb down there?

4. • Is it hot or
cold?
• Can we climb
down there?
• Should we?

7. • Crust – the surface of the earth. This includes
the ocean floor. It is between 60 and 100
miles thick.
• Mantle – The layer below the earth’s crust.
Its temperature varies from 1,800 to 6,200
degrees Fahrenheit. It is more than 1,800
miles thick, and is comprised of
Iron, Aluminum, Selenium, and other
elements.

8. • Outer Core – 6,000 and 8,000 degrees
Fahrenheit. Mostly liquid Iron and Sulfur.
• Inner Core – More than 8,000 degrees, made
of mostly solid Iron.

9. • Made of Iron – Why is it solid?