NAME: ______________________ H.R: ______ DATE: ___________________
SCI & TECH 204
The Earth & Space
SECTION 2: Geological Phenomena
NOTE-TAKING WORKSHEET
Orogenesis: Mountain Formation (pg. 328)
Most of the younger mountainous regions are found in zones where tectonic plates
_________________ ( _______________________ zones)
The process of mountain formation is called ____________________________.
When two continental plates _____________________, the Earth’s crust
______________, this mean it ______________ over and ________________.
Examples of mountain chains are the _______________________ in Nepal and the
_____________ in south-central Europe.
http://geofrik.com/2013/04/24/orogenesis/
What is a mountain?
___________________________________________________________________
___________________________________________________________________
The highest summit on Earth is ________ m. That is Mount ________________ in
the ___________________.
Mountains are easy targets for _____________, ______________, and __________
and several other _________________ factors.
Please answer Memory Check Questions #1-3 on p. 328 on a separate sheet.
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NAME: ______________________ H.R: ______ DATE: ___________________
SCI & TECH 204
The Earth & Space
SECTION 2: Geological Phenomena
NOTE-TAKING WORKSHEET
Erosion (pp. 329-331)
The slow but enormous changes in the Earth’s landscape are mainly caused by the
movement of ________________ ____________.
However, another force transforming the Earth’s landscape is _________________.
The effect of _______________, ________________ and ___________ wear down
rocks and ______________ them up.
Erosion results in a ______________________ of landforms; it tends to make
mountains ________________ and ___________ in valleys.
Three stages of erosion
1. ______________________: runoff and the ______________________ cycle
fragments ________________ rocks.
2. ______________________: rock fragments are carried by runoff water and
_______________.
3. ______________________: fragments suspended in _______________ or
transported by _________________ or ____________ accumulate and are
____________________ at the bottom of the ________________. They may
also ___________________ (build up) in _____________ and plains.
The three main agents of fragmentation are __________________, _____________
and the _______________-_____________ cycle.
Erosion can be slowed by
certain factors; for instance
_____________ ___________
hold soil in place (so don’t cut
down any trees!!!) and can
prevent _______________.
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NAME: ______________________ H.R: ______ DATE: ___________________
SCI & TECH 204
Categories of Erosion
There are three main categories of erosion:
1. _____________________ erosion:
Caused by ________________ organisms such as _________________
and _________________. When they __________________, they
release _________________ substances that attack rocks. Tree roots
________________ fissures of rocks and ________________ them
apart.
2. _____________________ erosion:
Caused by variations in ___________________ and
__________________ or by _____________ and
______________.
This is a _____________________ process that fragments rock.
3. _____________________ Erosion:
___________ ____________ chemically changes certain minerals
in the soil (such as __________________) which gradually destroys
rocks.
Aging Mountains
Like humans, the appearance of a mountain depends on its _____________.
A young mountain has a __________ and _______________ peak.
An old mountain has a ___________________ shape.
Young Mountain Chains (still growing)
Old Mountain Chains
Please answer Memory Check Questions # 1-5 on p. 331 on the back of this page.
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