Science Lesson 5: Looking at the Pieces

Question 1

Evidence of the Plate Movements:

Answer 1

Fit of the continents
Fossils
Similarity of Rock Types
Presence of Coals
Paleoclimatic Evidence

Question 2

Deposits of Rock Debris left by Glaciers

Answer 2

Tillites

Question 3

Fossilized leaves found on million-year-old rocks across most of the continents

Answer 3

Glossopteris

Question 4

A physicist that countered the Plate Tectonics Theory

Answer 4

Harold Jeffrey

Question 5

Explanation for the Continental Drift Theory

Answer 5

Seafloor Spreading Theory

Question 6

who suggested the Seafloor Spreading Theory?

Answer 6

Henry Hess

Question 7

Rocks are _____ at the mid-ocean ridges and get ____ the further they get.

Answer 7

younger, older

Question 8

When north pole transforms to south pole due to the direction of flow in the outer core

Answer 8

Magnetic Reversal

Question 9

These pictured the bottom of the ocean

Answer 9

Sonars/Submersibles

Question 10

Its aim was to know the age of the ocean floor.

Answer 10

Ocean Drilling

Question 11

Drilling Ship built to drill thousands of meters deep

Answer 11

Glomar Challenger

Question 12

Formed when hot rocky plumes move up to the surface of the mantle

Answer 12

Hotspot

Question 13

Created when the volcano moves along the direction of mantle’s motion

Answer 13

Hotspot Track

Question 14

Study of the record of Earth’s magnetic field in rocks

Answer 14

Paleomagnetism

Question 15

Paleomagnetism is also known as…?

Answer 15

Fossil Magnetism

Question 16

Structure formed along the area of the hotspot over time

Answer 16

Hotspot Volcano

Question 17

A naturally-occurring iron-rich mineral that is influenced by magnetic field

Answer 17

Magnetite

Question 18

used to estimate the plates’ movement

Answer 18

Radiometric Dating Samples

Question 19

suggests the amount of crust moving during a given period

Answer 19

Width

Question 20

Extension of Transform Faults

Answer 20

Fracture Zones

Question 21

Methods in measuring plate movement

Answer 21

Geodetic and Geologic Methods

Question 22

tool to calculate the motion of the plate

Answer 22

plate movement in space

Question 23

uses network of satellites that directly measure any movement (cm/yr)

Answer 23

Global Positioning System (GPS)

Question 24

uses 2 large distant radio telescopes and send signals used to analyze the motion of the plates

Answer 24

Very Long Baseline Interferometry

Question 25

they are used as stationary signals

Answer 25

Quasars

Question 26

This method uses transform faults, paleomagnetism, and seismic activity

Answer 26

Geologic Methods

Question 27

based on earth’s magnetic field provided by rock samples

Answer 27

Paleomagnetism Method

Question 28

Less accurate means of measuring plate movement; uses mechanisms of earthquakes

Answer 28

Seismic Method

Question 29

Fracture extends from a transform fault

Answer 29

Geometric Method