Grade 6 Test - Types of Rock, Erosion and Weathering

1) Recall the formation of igneous rocks that they are formed from ________________________.

• freezing and breaking up metamorphic rocks

• cooling and solidifying molten rock

• burying pieces of rocks and then compacted and cemented

• meteorites falls on earth

2) Metamorphic rocks form from _____________________ process.

• fast deposition

• cool down slowly

• usual deposition

• intense pressure

3) An igneous rock is characterized by an interlocking crystalline texture. Crystals form as a result of ______________________.

• product of reacting minerals

• cooled rock that had melted

• heating and melting rocks

• emerging quartz from solution

4) Select the incorrect comparison between erosion and weathering.

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5) What is the name of the rock shown in the picture above?

• Sedimentary rock

• Igneous rock

• Metamorphic rock

• Decorative rock

6) What can be found in between the sedimentary layers in the picture, which later will turn into petroleum and natural gas?

• Crystals

• Magma

• Lava

• Fossils

7) The illustration below depicts a rock being eroded by freeze-thaw weathering. Freeze-thaw is most likely to happen at temperature _____________ during the day and ___________ at night.

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8) A stream can be seen flowing downward in the cross section below with points A to D referring to different locations in the stream. Identify the most deposition point would occur and circle it.

• Point A

• Point B

• Point C

• Point D

9) Which of the following are the agents causing biological weathering?

i.         Water

ii.         Animal

iii.         Plants

iv.         Sun

• i, iv

• ii, iii

• iii, iv

• ii, iv

10) The diagrams provide four different illustrations of a same sediment-transporting process.

Study the four diagrams carefully and then, select one process to match all the pictures, and the correct justification.

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