FIRST QUARTER Science 10 Group Review

What do you call the outermost layer of the Earth?

• crust

• mantle

• outer core

• inner core

It is a type of rock that can be found in continental crust.

• aluminum

• granite

• nickel

• basalt

You were asked to locate the epicenter of a recent earthquake. Which correct sequence of events should you follow?

i. Determine the difference in the arrival time of S and P waves recorded from each of the seismological stations.

ii. Use the triangulation method to locate the center.

iii. Obtain data from three different seismological stations.

iv. Determine the distance of the epicenter from the station.

• i, iii, ii, iv

• iii, i, iv, ii

• iii, iv, i, ii

• iv, ii, i, iii

In the formula d=Td/8s X 100km, why is time difference (Td) divided by 8 seconds?

• The difference in arrival time is 8 s per 100 km.

• The scientist's favorite number is 8.

• The velocity of the P wave is 100km per 8s.

• Eight is a lucky number.

Which statement does best describe the location of the majority of earthquake epicenters relative to the location of volcanoes around the world?

• They are far adjacent

• They are always 3 kilometers away from each other

• They are situated at the same location

• They are not necessarily relevant

What do you need to do during an earthquake?

• Panic and shout for help

• Take a selfie and post it on facebook with #FeelingScared

• Look for your friends and ask them for group picture

• Stay calm and perform 'duck cover and hold'

How long does it take a P-wave to travel 5, 600 km?

• 9 minutes

• 9 minutes and 20 seconds

• 9 minutes and 40 seconds

• 9 minutes and 59 seconds

If a P-wave arrives at a station 5,600 km away at 9:18:00, what time did the earthquake start or begin?

• 7:09:00

• 8:09:00

• 9:09:00

• 10:09:00

An epicenter station is 8, 400 km away. How long after the first P-wave did the first S-wave arrive?

• 9 minutes

• 9 minutes and 20 seconds

• 9 minutes and 40 seconds

• 10 minutes

What type of plate boundary exists between African Plate and South American Plate?

• divergent

• convergent

• transform

• none of the above