WorksheetsWeathering
Total questions: 25
Worksheet time: 12mins
Weathering of rock can best be described as
transportation of rock fragments
breakdown of rock into fragments
combining of rock fragments
cementing of rock fragments
The diagram below represents the size and shape of a pebble. This pebble and 20 other pebbles having a similar size and shape were placed in a rock tumbler with water and allowed to abrade for five days.
Which characteristic would most likely remain constant when a limestone cobble is subjected to extensive abrasion?
shape
composition
volume
mass
The diagram below shows granite bedrock with cracks. Water has seeped into the cracks and frozen. The arrows represent the directions in which the cracks have widened due to weathering.
Enlargement of the cracks occurs because water expands when it freezes.
This type of weathering is common in regions of primarily warm and humid climates.
The cracks become wider because of chemical reactions between water and the rock
This type of weathering occurs only in bedrock composed of granite
The diagram below shows the stump of a tree whose root grew into a small crack in bedrock and split the rock apart.
chemical weathering
physical weathering
erosion
deposition
Which types of weathering is primarily responsible for the formation of caves?
chemical weathering of calcite in limestone
chemical weathering of quartz in sandstone
physical weathering pf calcite in limestone
physical weathering of quartz in sandstone
Which rock weathers most rapidly when exposed to acid rain?
quartzite
granite
marble
schist
The cross section below represents an outcrop of sedimentary rock layers exposed on Earth's surface. Rock layers A, B, C, and D are labeled. Which rock layer shows the greatest resistance to weathering and erosion?
a
b
c
d
The sedimentary rock layers are being weathered and eroded at different rates primarily because the rock layers
formed during different time periods
are horizontal
have different compositions
contain different fossils
Which two processes produced the layer of dark brown to black soil?
melting and solidification of magma
compaction and cementation
weathering and biologic activity
erosion and uplifting
The difference in appearance of these two landscapes was caused mainly by a difference in the
climate
rock structure
rock type
amount of uplift
The landscape's sharp angular features is a result of a....
humid warm climate
dry hot climate
dry cold climate
humid cold
This natural arch is formed by
chemical weathering
frost action
root wedging
abrasion from wind driven sand
Sediments such as pebbles and sand are classified based on
mineral composition
particle size
crystal size
environment of formation
Which activity demonstrates chemical weathering?
freezing of water in the cracks of sidewalk
abrasion of a streambed by tumbling rocks
dissolving of limestone by acid rain
grinding of talc into a powder
Which particle most likely underwent the most amount of abrasion?
Why is the surface of the Moon covered with meteor impact craters, while Earth's surface has relatively few craters?
The Moon is larger than Earth, so it gets hit with more meteors.
The Moon is older so it has a longer history of meteor impacts.
Earth's less dense water surface attracts fewer meteors.
Earth's atmosphere burns up meteors as they approach Earth and weathering and erosion destroys evidence of the any craters
The block diagram below represents caves that developed in a region over time.Which type of weathering was primarily responsible for the development of these caves?
physical weathering of limestone
chemical weathering of sandstone
chemical weathering of limestone
physical weathering of sandstone
In which climate would the chemical weathering of limestone occur most rapidly? (think of our sugar cube lab )
cold and dry
warm and humid
warm and dry
cold and humid
