Inferred Properties of
Using the Pressure
& Temperature Graphs:
Q: Find the pressure
at a depth of 1500 km.
A: Find 1500 on the bottom axis and follow the green line up to the
black line on the pressure graph. Go left to find the pressure: 0.5
million atmospheres (atm).
Q: At what depth is the pressure 0.5 million atm?
A: Find 0.5 million atm and follow the green line to the black
pressure line. Then drop all the way down and read the depth: 1500
Q: What is the
temperature of the earth at a depth of 3500 km?
A: Find 3500 km on the bottom axis and follow the red line to the
black temperature line. Go left and read the temperature: About 5400
Q: At what depth is the earth's temperature 5400°C?
A: Find the temperature of 5400°C. Follow the red line over to the
black temperature line and drop straight down. Read the depth: 3500
Practice Regents Questions