Font size
WorksheetsNassar 8 Rock
Total questions: 28
Worksheet time: 15mins
Order the following from smallest to largest.
rock
Atoms
mineral
molecules
Atoms
molecules
mineral
rock
mineral
molecules
Atoms
rock
Identify the three main types of rock.
Granite, basalt and limestone
Sedimentary, igneous and metamorphic
Intrusive, extrusive and metamorphic
Limestone, slate and marble
Select the option that best completes the following sentence.
Rocks are classified into three main types depending on:
where they are found
how old they are
how they were formed
their colour
Determine the difference between magma and lava.
Magma is molten, lava is solid rock
Magma cools to form igneous rock, lava cools to form sedimentary rock
Magma is on the surface, lava is underground
Magma is underground, lava is on the surface
When magma reaches the surface during a volcanic eruption, it is called lava.
T or F
T
F
Recall which of the following processes form igneous rocks.
(1) The slow cooling of molten rock deep below the Earth's surface
(2) The fast cooling of molten rock following a volcanic eruption
(3) The heating and compression of rocks deep below the surface
(4) The cementing together and compaction of sediment
(1) and (2)
Fast cooling on the Earth's surface after an eruption forms igneous rocks with small crystals.
T
F
These influences slowly break down the rock in which ways:
weathering
erosion
both
is the breakdown of rock while it remains in the same place
weathering
erosion
is the wearing away and removal of rock
weathering
erosion
weathering and erosion break rocks down into small pieces or particles, known as
(a)
Recall the difference between weathering and erosion.
Weathering removes rocks from an area and erosion breaks down rocks in the same place
Weathering breaks rocks down, erosion puts the pieces back together
Weathering occurs deep underground, erosion occurs on the surface
Weathering doesn't involve the movement of rock particles, erosion does
erosion is the breakdown of rock while it remains in place, while Weathering involves the removal of rock.
T
F
Identify which of the following are types of sediment.
Mud on the bottom of a lake
Pebbles on a beach
all above
Sand in a desert
What two processes slowly change the loose sediment into rock?
(a)
Compaction is
the gluing together of sediment by new mineral crystals. These crystals grow in the spaces between the grains.
the squeezing of sediment by the weight of overlying layers.
Cementation is
the gluing together of sediment by new mineral crystals. These crystals grow in the spaces between the grains.
the squeezing of sediment by the weight of overlying layers.
Sedimentary rocks can also form from the remains of living things.
For example, limestone forms from shells and corals that collect on the ocean floor and are buried by sediments. Coal is a type of rock that forms in a similar way from the remains of dead plants.
T
F
Identify which of the following processes form sedimentary rocks.
(1) The burial of the remains of marine organisms
(2) The heating and compression of rocks deep below the surface
(3) The cooling of molten rock following a volcanic eruption
(4) The burial of mud, sand and pebbles produced when exposed rocks are broken down
(1) and (4)
Imagine a mining company discovers a large quantity of coal buried underground.
Infer what that area might once have been.
A forest
A desert
A volcano
An ice sheet
Deep beneath the surface, rocks experience high temperatures and pressures.
Igneous rocks
metamorphic rock.
sedimentary rock.
Deep below the Earth's surface, temperatures are high enough for rock to melt.
Igneous rocks
Sedimentary rocks
Metamorphic rocks
Rocks at the surface are exposed to heating, cooling, wind, rain, flowing water, chemical reactions, plants and animals.
Metamorphic rocks
Sedimentary rocks
Igneous rocks
Recall which one of the following processes forms metamorphic rocks.
The burial and heating of the remains of dead plants
The slow cooling of magma deep below the surface
The heating and compression of rocks deep below the surface
The burial and compaction of sediment
Identify the definition of a parent rock.
A rock that breaks in half to form a new rock
Any rock, before it changes under intense pressure and heat
A rock that melts completely into magma and then cools
A rock that gets exposed by weathering and erosion
Identify which of the following types of rock can form metamorphic rocks.
Sedimentary rocks
Igneous rocks
Other metamorphic rocks
all above
Determine which of the following can change during the formation of metamorphic rocks.
Crystal size
Crystal shape
The strength of the rock
Types of minerals
all above
The ancient Greek marble statue of Aphrodite of Milos is over 2000 years old.
Determine why the artists selected marble instead of its parent rock, limestone.
Marble doesn't have crystals
Limestone is made from coral and shell material
Marble is harder and stronger than limestone
