Question

journey to the center of the earth

1. complete the chart below based on the information from the inside earth textbook (pg. 10- 13) and from the journey to the center of the earth reading.

layer of
earth
info | crust | mantle | outer core | inner core
--- | --- | --- | --- | ---

oceanic crust

continental crust

upper mantle (asthenosphere)

lower mantle

thickness (km) (top of layer to the bottom of layer) | | | 100 km, 320 km, 430 km | | |
temperature range | -1°c to 400°c | 200°c to 400°c | 1,300°c | 1000°c to 1500°c | 4000°c to 6000°c | 6000°c
state of matter (solid, liquid, solid that flows) | | | | | |
material (what is it made of) | | | | | |

Explanation:

Filled using standard Earth science data for each layer's thickness, state of matter, and composition, matching typical textbook information for Earth's internal layers.

Answer:

Layer of Earth Info	Crust		Mantle		Outer Core	Inner Core
Thickness (km)	5-10 km	30-50 km (up to 70 km under mountains)	~100-200 km (top to base of asthenosphere; upper mantle total ~410 km)	~2,900 km	~2,200 km	~1,220 km
Temperature range	-1°C to 400°C	200°C to 400°C	1,300°C	1000°C to 1500°C	4000°C to 6000°C	6000°C
State of Matter	Solid	Solid	Solid that flows (plastic)	Solid	Liquid	Solid
Material	Basalt (dense igneous rock)	Granite (less dense igneous rock)	Peridotite (olivine-rich rock)	Silicon, oxygen, iron, magnesium-rich rock	Iron-nickel alloy with sulfur	Iron-nickel alloy (with small amounts of silicon, oxygen)