unit test study guide

Changing Earth Formative Assessment

Grade:6

Subject:Science

Date:9/12/11

1 What is the correct order of the layers of the Earth from OUTERMOST layer to the INNERMOST layer?

A crust, outer core, inner core, mantle

B crust, mantle, outer core, inner core

C inner core, outer core, crust, mantle

D inner core, outer core, mantle, crust

2 Which of the following is true as you move from Earth's outermost layer to its innermost layer?

A The thickness of each layer increases

B The thickness of each layer decreases

C The heat and pressure increase

D The heat and pressure decrease

3 Which of the following statements is most true of the inner and outer core?

A They are both a molten layer

B They are both a solid layer

C They are both made of magma

D They are both made of iron and nickel

4 Which of the following statements does not describe a tectonic/crust plate?

A They are stationary

B They are driven by actions in the mantle

C They move slowly

D They have been moving for millions of years

5 Which of these statements is correct?

A Continental crust is thicker than oceanic crust

B Continental crust is thinner than oceanic crust

C Oceanic crust does not exist

D Continental and oceanic crust are the same thickness

6 Mid-ocean ridges are places where tectonic/crustal plates are...?

A colliding

B sliding past each other

C spreading apart

D none of the above

7 Approximately 225 million years ago, the Earth's continents were grouped into one landmass. What was this landmass called?

A Europa

B Jurassic

C Pangaea

D Pangaea Ultima

8 What is happening at a subduction zone?

A The oceanic crust is being pulled under continental crust

B Plates are sliding past each other

C Plates are spreading apart

D None of the above

9 When did the supercontinent of Pangaea begin to break apart?

A 20 million years ago

B 40 million years ago

C 100 million years ago

D 200 million years ago

10 Which of these concepts is part of the theory of plate tectonics?

A Continents are fixed and do not move

B A great flood shaped Earth's surface

C Continents are in slow, constant motion

D Continents and crustal/tectonic plates are the same size

11 Mountain formation can result when which of the following occurs?

A Two oceanic plates collide

B Two continental plates collide

C Two oceanic plates spread apart

D Two continental plates spread apart

12 What is the border between two tectonic/crustal plates called?

A boundary

B collision zone

C rift

D trench

13 Which of the following geologic events are most common at a transform boundary?

A Mountain formation

B Earthquakes

C Volcanic eruptions

D Rift formation

14 What is NOT likely to happen at a divergent boundary?

A Volcano formation

B Seafloor spreading

C Rift valley

D Mountain formation

15 California's San Andreas Fault is identified as which type of fault?

A Blind thrust

B Dip-Slip

C Normal

D Strike-Slip

16 Which is true of P waves?

A They do the most damage on the surface of the Earth

B They are the slowest of all earthquake waves

C They are the fastest of all earthquake waves

D They are the last to arrive at a seismograph

17 Which type of earthquake waves cause the most damage?

A S waves

B P waves

C Surface waves

18 What best describes the magnitude of an earthquake?

A It is how long the earthquake waves were felt

B It is the distance the waves of an earthquake travel

C It is how powerful the earthquake was

D It is the time between S and P waves

19 Which of the following statements is true?

A The focus is directly above the epicenter

B The epicenter is directly above the focus

C The focus is the point on the surface where the earthquake originated

D The epicenter is the point in the ground where the earthquake originated

20 What is this a picture of?

A Earthquake damage

B Earthquake S and P waves arrival times

C Earthquake frequency

D Earthquake damage report

21. What is the S-P interval for this seismograph?

22. What is the amplitude of the S wave?

23. What is the magnitude of this earthquake?

24. In what city is this earthquake’s epicenter?