WorksheetsWeathering & Soil 6.1WS
Total questions: 23
Worksheet time: 12mins
Name
Class
Date
1.
The processes that break, wear, abrade and chemically alter rocks and their surfaces is this.
a)
weathering
b)
erosion
c)
cementing
d)
compacting
2.
What do we call the small pieces that break off rocks over periods of time?
a)
sediments
b)
plastics
c)
splinters
d)
none of these
3.
Sand, clay and silt are all different sizes of sediments. Which are the largest?
a)
sand
b)
silt
c)
clay
d)
fragments
4.
Sand, clay and silt are all different sizes of sediments. Which are the smallest?
a)
sand
b)
silt
c)
clay
d)
fragments
5.
What affects weathering rates?
a)
rock type
b)
environment
c)
both of these
d)
neither of these
6.
What two things in the environment determine the weathering rate of rocks?
a)
water and temperature
b)
animals and temperature
c)
animals and water
d)
none of these
7.
This type of weathering is fastest in locations with frequent temperature changes.
a)
animal weathering
b)
mechanical weathering
c)
chemical weathering
d)
none of these
8.
This type of weathering is fastest in warm wet locations.
a)
animal weathering
b)
mechanical weathering
c)
chemical weathering
d)
none of these
9.
Which type of weathering requires cycles of freezing and thawing?
a)
mechanical weathering
b)
chemical weathering
10.
Which type of weathering often occurs near the equator?
a)
mechanical weathering
b)
chemical weathering
11.
Which is the cause of mechanical weathering that is.....most effective.....enters cracks of rocks.....requires repeated freezing and thawing
a)
ice wedging
b)
abrasion
c)
plants
d)
animals
12.
Which is the cause of mechanical weathering that is.....grinding away by friction or impact.....happens in stream currents where loose fragments are carried tumbling and grinding against one another breaking into smaller pieces.....also caused by glaciers, wind, and waves
a)
ice wedging
b)
abrasion
c)
plants
d)
animals
13.
Which is the cause of mechanical weathering that is.....when roots and stems grow in cracks of rocks.....the roots and stems get longer and wider pushing against cracks breaking the rock
a)
ice wedging
b)
abrasion
c)
plants
d)
animals
14.
Which is the cause of mechanical weathering that is.....creatures living in soil making holes and burrowing
a)
ice wedging
b)
abrasion
c)
plants
d)
animals
15.
Which type of weathering changes the materials that are part of the rock?
a)
mechanical weathering
b)
chemical weathering
16.
This substance is important to chemical weathering because most substances dissolve in it.
a)
base
b)
acid
c)
water
d)
none of these
17.
This type of solution will speed up chemical weathering.
a)
base
b)
acid
c)
water
d)
none of these
18.
When we test the property of solutions we test this.
a)
base
b)
acid
c)
pH
d)
Hp
19.
The scale for measuring pH is from 0-14. What range tells us something is acidic?
a)
between 0-7
b)
7
c)
between 7-14
d)
0
20.
The scale for measuring pH is from 0-14. What range tells us something is neutral?
a)
between 0-7
b)
7
c)
between 7-14
d)
0
21.
The scale for measuring pH is from 0-14. What range tells us something is basic?
a)
between 0-7
b)
7
c)
between 7-14
d)
0
22.
What happens when the oxygen in the air combines with other elements?
a)
oxidation
b)
acid rain
c)
neither of these
d)
both of these
23.
Rock type and size also determine weathering rate because of which of the following?
a)
rocks with minerals that have a low hardness rating
b)
surface area
c)
number of holes or cracks in rock
d)
all of these
100 %
