Earth Science Study Guide

Which Island is the youngest?

• Kauai
• Hawaii
• Oahu
• Molokai

Which statement about seismic waves is accurate? 

• Seismic waves only relate to earthquakes.
• Seismic waves have uniform motion within Earth’s layers.   
• Seismic waves change speed when density changes in earth’s layers.
• Seismic waves determine differences in temperature in earth’s layers.

Which two landforms are caused by convergent plate boundaries? 

• A ridge and a rift valley
• A rift and an ocean trench
• A trench and a mid-ocean ridge
• An ocean trench and a mountain range  

Which feature does not result from seismic activity? 

• Volcanoes
• faults
• glacial deposits
• folded rock layers

P waves travel through liquids and solids.

• true
• false

Convection currents occur in Earth’s interior.  Which layer has convection currents? 

• crust
• mantle
• inner core
• outer core

What are two the two sources of thermal energy in Earth’s interior? 

• solar heating and gravity
• combustion and solar heating.
• gravity and radioactive decay
• radioactive decay and combustion

Which diagram shows rocks responding to tectonic stress in a way that could lead to the formation of new crust?

• A
• B
• C
• D

Why is the layers not level?

• fault
• extrustion
• intrustion
• transform boundary

What is W?

• Extrustion
• Intrusion
• Radioactive decay
• Sedimentary rock