4.1,4.2,4.3,4.4

Question 1

Thinnest layer on Earth

Answer 1

Crust

Question 2

Thickest layer on Earth

Answer 2

Mantle

Question 3

Center layer of Earth

Answer 3

Core

Question 4

Made up of crust and the upper mantle

Answer 4

Lithosphere

Question 5

Made up of solid rock that moves slowly. Plastic layer of Mantle

Answer 5

Asthenosphere

Question 6

Extends from bottom of Asthenosphere

Answer 6

Mesosphere

Question 7

Pieces of the lithosphere that move around on top of the Asthenosphere very slowly

Answer 7

Tectonic Plates

Question 8

Measure the times at which seismic waves arrive at different distances from earthquakes.

Answer 8

Seismographs

Question 9

Waves travel at different speeds in the Earth

Answer 9

Seismic Waves

Question 10

Hypothesis that states all the continents formed a single landmass called Pangaea

Answer 10

Continental drift