HW 4
Name___________________________________
1) Calculate the density of the Earth. Show work.
2) From the Earth’s density, what can you infer about its composition?
3) What travels faster: S-waves or P-waves?
4) Why do we think part of the Earth’s core is liquid?
5) What is the Richter Scale?
HW 4
6) What causes the Earth’s magnetic field?
7) What is a geomagnetic reversal?
8) What is the primary constituent of the Earth’s core? It is an element.
9) When was the last time that the Earth had a geomagnetic reversal/
10) What does the Earth’s magnetic field protect us from?