Monday, September 27, 2010

Grade 8 Week 3: Faults

This week we move to breaks in the rock caused by plate tectonics. Last week we learned about boundaries, large divisions between Earth's plates. This week we look at the 'small' cracks and breaks that occur in the rock was these boundaries move into, away from, and slide across each other.

What happens at a fault?
Why?
Why are some faults found no where near a boundary?

This week's contract can be found here.

13 comments:

Rachel Miller said...

What happens at a fault? earthquakes and sometimes moutains form on a fault line

Why? because the plates move and shift and the plates run into each other forming mountains

Anonymous Oh it is actually Moses said...

Can we do things outside before it gets to cold?

jericho said...

So what are the differences between the normal and reversal fault???????

John said...

Which current topic can be done outside?

What would we do out there?

Addy said...

How would you tell where an earthquake occured by using primary and secondary waves?

Cam said...

How does the energy from an earthquake's focus cause seismic waves?

Anonymous said...

Earthquakes,trenches, mountains and volcanoes can happen at fault lines. Plates move, and sometimes, they have nowhere to go other than up or down. Some faults are found where there isn't a boundary because sometimes cracks go off of boundaries.

Hannah Larson said...

What will happen at a fault and do people who live on mountians feel earthquakes?

josh lienau said...

volcanoes form at faults to

Anonymous said...

Faults are fractures in the Earth and can cause earthquakes around them.

Unknown said...

they can split a part and make a crack in the earth and form mountains and volcanos and earthqaukes happen on faults in the earth faults can form hurricanes.

Kassi said...

Faults can be bondries created by plate movement

cecka said...

i under stud how they slip and how mountains are formed.