Earth Science - Year 9

Question 1

What can signal an incoming tsunami?

Accepted Answer

tide goes out

Question 2

The top of a volcano is called the...

Accepted Answer

crater

Question 3

At a convergent plate boundary, plates...

Accepted Answer

collide

Question 4

The three types of plate boundaries are

Accepted Answer

convergent, divergent, transform

Question 5

P-waves move faster than S-waves

Accepted Answer

True

Question 6

Obsidian rock looks

Accepted Answer

very smooth, like glass

Question 7

Sea floor spreading occurs at...

Accepted Answer

mid ocean ridges

Question 8

The layers of the earth from inside out are...

Accepted Answer

Inner core, outer core, mantle, crust

Question 9

An earthquake of 6 on the richter scale is how many times stronger than one that is a 5?

Accepted Answer

10

Question 10

Once magma has exited a volcano, it is called...

Accepted Answer

lava

Question 11

Pumice rocks looks

Accepted Answer

Foamy, with lots of air pockets

Question 12

Earthquakes create P-waves. P stand for...

Accepted Answer

primary

Question 13

At a transform plate boundary, plates...

Accepted Answer

slide past each other

Question 14

At a divergent plate boundary, plates

Accepted Answer

move apart

Question 15

The epicentre is...

Accepted Answer

the point on the earth's surface directly above the focus

Question 16

Convection currents of magma occur in the...

Accepted Answer

mantle

Question 17

The focus is

Accepted Answer

where the earthquake occurred in the ground

Question 18

Earthquakes create S-waves. S stand for...

Accepted Answer

secondary

Question 19

Movements in the earth are recorded with a...

Accepted Answer

seismograph

Questions 19