Lesson 10.1 PPT

Question 1

is the process of breaking down rocks present at Earth’s
surface.

Answer 1

Weathering

Question 2

Weathering can happen in the presence of the action of rainwater,
variable extreme temperature, and different biological activities.

Question 3

Types of Weathering

Answer 3

Mechanical
Chemical

Question 4

is a process
wherein rocks are broken down into
smaller pieces without changing their
chemical composition due to several
factors like fluctuating temperatures and
pressure, and biological activity.

Answer 4

Mechanical weathering

Question 5

types of mechanical weathering

Answer 5

Frost wedging
Biological activity
Unloading
Salt crystal growth
Heating and cooling

Question 6

is a process that involves repeated cycles of freezing
and thawing of ice

Answer 6

Frost wedging

Question 7

happens when
there is sufficient moisture,
pre-existing cracks, and
when temperatures
frequently rise and fall.

Answer 7

Frost wedging

Question 8

is a
process that happens when
seawater penetrates crevices
in rocks which are found
mostly in rocky shorelines
and arid regions.

Answer 8

Salt crystal growth

Question 9

Salt crystals _ when
subjected to an increase in
temperature that causes the
widening of cracks.

Answer 9

expand

Question 10

is the action
of organisms, including plants
and animals, that reduces the
size of rocks and minerals
which make rocks more
susceptible to chemical
weathering.

Answer 10

Biological activity

Question 11

happens when,
through erosion or uplift, thick
layers of sediments overlying
deeply buried in rocks are
removed.

Answer 11

Unloading

Question 12

is a
process wherein rock materials
are changed into other
substances that have different
physical and chemical
compositions.

Answer 12

Chemical weathering

Question 13

types of chemical weathering

Answer 13

dissolution
hydrolysis
oxidation

Question 14

is a process wherein a
solid (i.e., halite) dissolves in a liquid
(i.e., water).

Answer 14

Dissolution

Question 15

is a process where water
reacts with a mineral to form a new
mineral.

Answer 15

Hydrolysis

Question 16

when there is a
chemical combination of oxygen
with a mineral to form an entirely
different mineral in which at least
one of the elements has a higher
ionic charge.

Answer 16

Oxidation

Question 17

Factors of Weathering in Rocks

Answer 17

Climate
Surface Area
Topographic relief
Rock composition

Question 18

_ mainly includes the amount of moisture in the air and
temperature where weathering takes place.

The higher the elevation of an area, the more susceptible it is to
weathering since it is more exposed to environmental factors.

Answer 18

Climate

Question 19

Weathering rapidly occurs when there is a
large _ _ exposed to surface
processes.

When a block is broken into smaller pieces, it
has a larger total _ _ which makes it
more susceptible to weathering.

Answer 19

Surface area

Question 20

illustrates the
relative stability or weathering rate of
numerous minerals. This series is roughly
the inverse order of original
crystallization for minerals found in the
Bowen’s reaction series.

Answer 20

Goldich stability series