1st Nine Weeks Exam Part 2 Question Preview (ID: 21103)


Part 2. TEACHERS: click here for quick copy question ID numbers.

When rocks undergo weathering, they become
a) magma.
b) igneous rocks.
c) sediment.
d) volcanic cones.

Igneous rocks are classified by where they are formed. Which type of igneous rock forms underground?
a) extrusive
b) intrusive
c) volcanic
d) ash

A fossil of an ocean fish was found in a rock outcrop on a mountain. This probably means that
a) fish once lived on the mountain.
b) the relative humidity was once very high.
c) the mountain was raised up after the fish died.
d) fish used to be amphibians like toads and frogs.

Fossils of the fern Glossopteris have been found in Africa, Australia, South America, and Antarctica. How do scientists explain this observation?
a) The wind blew the seeds across the oceans from continent to continent.
b) The fern developed independently on each continent.
c) The continents were at one time joined together and then moved apart.
d) The fern had adaptations to survive the different environments of the continents.

Sedimentary rocks can be converted into magma by undergoing which of the following processes?
a) weathering and erosion
b) evaporation and condensation
c) heat and pressure
d) compaction and cementation

When magma reaches the Earth's surface it becomes
a) gas.
b) steam.
c) energy.
d) lava.

student wants to study how igneous rock changes to sedimentary rock. Is this a good project if the student needs to complete the study within a month?
a) Yes because the changes will happen quickly.
b) Yes because the changes will be easily observed since they are very obvious.
c) No because the difference between igneous rock and sedimentary rock is not noticeable.
d) No because the changes will take much longer than a month to occur.

Rocks found on the Earth are generally classified as sedimentary, metamorphic, or igneous. How are these rocks classified?
a) the chemical composition of the rocks
b) the color and shape of the rocks
c) how the rocks were formed
d) where the rocks are found

Subduction is
a) a device that bounces sound waves off underwater objects
b) the process that continually adds ocean floor
c) the direct transfer of heat through solid materials
d) the process by which oceanic crust sinks beneath trenches

What type of rock is sandstone?
a) igneous
b) metamorphic
c) ferromagnetic
d) sedimentary

The place where 2 plates are moving away from each other is a
a) transfer boundary.
b) transform boundary.
c) convergent boundary.
d) divergent boundary.

A boundary where two tectonic plates come together, or collide, is called a
a) fault
b) transform boundary
c) convergent boundary
d) divergent boudary

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