WorksheetsEarth Science SSA
Total questions: 60
Worksheet time: 12hrs 11mins
The processes involved in the rock cycle take place over millions of years. Which of the following describes a phase of the rock cycle that takes longer to produce results?
Rocks are eroded by
wind and rain.
Eroded rocks travel by
wind or moving water.
Rocks form layers of
sediment and solidify into new rocks.
Rocks are pushed to Earth's surface by tectonic forces
Why is it most likely that fossils will be found in sedimentary rock rather than igneous or metamorphic rock?
Molten sedimentary
rock burns up living organisms and fossilizes them as it cools.
Animals can dig into
sedimentary rock, and some are trapped inside and fossilize.
Sedimentary rock breaks apart most easily, so fossils inside are seen more often
Organisms can get trapped and fossilize as the layers of sedimentary rock form
He found one fossil embedded in the rock near the top of the outcrop and another embedded in the rock almost at the bottom of the outcrop. What do their positions tell him about the two fossils?
The lower fossil is older than the upper fossil
The upper fossil is older than the lower fossil
The upper fossil must be that of a climbing animal
The lower fossil must have washed down from the top
Sometimes the layers in a rock face look as if they have been bent or broken. What is the most likely cause of this?
uneven deposition of
sediment as the rock formed
folding and faulting in an earthquake
weathering and erosion
of some rock layers
lava flows in a volcanic eruption
With the use of satellites, we are able to measure the exact heights of landforms such as mountains. Scientists have discovered that mountains in the Himalayas get taller by several centimeters each year. What is causing this?
The continued force of two tectonic plates colliding pushes the mountains higher each year.
Large amounts of sediment get blown to the tops of the mountains each year
The volcanoes in the mountains add layers of lava each year when they erupt
Underground roots from continued tree growth at the mountain base increases their height over time
What would be the most effective way for a scientist to get an idea of the actual age of a rock?
Measure the relative amounts of radioactive elements in it
Judge its position in the rock face relative to that of other rocks
Measure the amounts of different forms of carbon it contains
Estimate how much of it has worn away since it formed originally
The oldest rocks on Earth are found in Canada near the center of the North American Plate. Where would be the most likely place to find very young rocks?
in Northern India,
where the plates are colliding
in the Hawaiian Islands, where a plate passes over a hot spot
in Southern
California, where two plates are sliding past each other
in the middle of the South American Plate, where there is no plate boundary
The Earth is made up of several large, slow-moving tectonic plates that sometimes cause earthquakes. Which layer of the Earth contains these large plates?
lithosphere
mantle
molten core
solid core
In some places on Earth, large tectonic plates are moving toward each other and collide with great force. One such place is where the Indian plate and the Eurasian plate meet. What type of formation might occur where two tectonic plates collide?
a canyon
a rift valley
a mountain range
an eartquake
The tectonic plates that make up the surface of the Earth slowly move and interact with each other. Which of the following is NOT a result of tectonic plates moving on the surface of the Earth?
earthquakes
volcanoes
mountain ranges
erosion
The Earth is made up of several different layers, and each layer has different properties. Which layer of the Earth is the least dense?
the mantle
the crust
the molten core
the solid core
The surface of the Earth is made of several tectonic plates that move at a very slow rate. What causes the plates to move?
explosions within the
Earth's mantle
convection currents within the Earth's mantle
expansion of the
Earth's core pushing on the tectonic plates
contraction of the Earth's core pulling on the tectonic plates
