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:

  1. 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

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  2. Anonymous Oh it is actually MosesThu Sep 30, 05:59:00 AM

    Can we do things outside before it gets to cold?

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

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  4. Which current topic can be done outside?

    What would we do out there?

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

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

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  7. 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.

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

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  9. volcanoes form at faults to

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

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  11. 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.

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  12. Faults can be bondries created by plate movement

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

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