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Types of Rocks and Soils

This test is useful for all the students of class 6 of CBSE,ICSE and all other boards and also useful for students of different competitions and olympiads.

20 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which is a sedimentary rock?

  1. Slate
  2. Basalt
  3. Shale
  4. Marble
  5. Granite
Question 2 Multiple Choice (Single Answer)

Which is TRUE about sedimentary rocks?

  1. limestone is made of nitrate minerals
  2. limestone readily fizzes with acid and limestone is made of carbonate minerals
  3. the red of sandstone is usually due to calcium compounds
  4. hard wearing, not easily weathered, even by acid rain
  5. usually non-porous
Question 3 Multiple Choice (Single Answer)

Which rock description is most likely to be that of the basalt?

  1. usually orange-red, porous, sometimes fossils
  2. larger crystals, many colours, close grained (non-porous), no fossils
  3. dark coloured, close grained, small crystals, no fossils
  4. usually white-grey-yellow, often fossils, porous
  5. usually white,porous,sometimes fossils
Question 4 Multiple Choice (Single Answer)

Which description corresponds to erosion?

  1. wearing away of a rock face
  2. settling out of rock grains or stones
  3. moving rock fragments by water, wind or glacier
  4. breaking down rocks into smaller fragments by someone
  5. breaking up of rocks by wind or rain
Question 5 Multiple Choice (Single Answer)

In general, rocks can best be described as a

  1. mixtures of compounds
  2. pure element
  3. pure compound
  4. mixtures of metals
  5. mixture of acids
Question 6 Multiple Choice (Single Answer)

What can you say from the experiment?
A lump of basalt was weighed before and after dipping into water. The experiment was repeated with a lump of sandstone. The sandstone produced bubbles and gained significant weight. The basalt produced no bubbles and weighed about the same.

  1. the sandstone is more porous than basalt
  2. the basalt is made of large crystals
  3. the basalt is more dense than sandstone
  4. the sandstone removed the dissolved air from the water
  5. basalt has many layers
Question 7 Multiple Choice (Single Answer)

Which sequence most closely describes the process of forming sandstone?

  1. burial, pressure, cementation, recrystallisation
  2. burial, melting, cooling
  3. weathering, erosion, transportation, deposition, burial, pressure, cementation
  4. may involve burial first, heat and/or pressure, recrystallisation without melting
  5. transportation, weathering, erosion, deposition, burial, cementation
Question 8 Multiple Choice (Single Answer)

Which statement is TRUE about fossils?

  1. they cannot be used to date rock formations
  2. the deeper a fossil is the more recent it is
  3. fossils are found in igneous rocks
  4. they cannot provide evidence for 'continental drift'
  5. they tell us much about the evolution of animal species
Question 9 Multiple Choice (Single Answer)

Which statement is TRUE about weathering due to plant growth?

  1. the water running of the leaves is more acid than rain
  2. root growth in a crack can cause the rock to crack
  3. there will be more weathering due to the plant in winter
  4. it is a chemical form of weathering
  5. plant has no role in weathering
Question 10 Multiple Choice (Single Answer)

Which of the following is a green colour ore of copper?

  1. Magnetite
  2. Cuprite
  3. Copper Pyrites
  4. Haematite
  5. Malachite
Question 11 Multiple Choice (Single Answer)

Which of the following rock formed from the action of heat and pressure on limestone?

  1. Shale
  2. Basalt
  3. Marble
  4. Granite
  5. Quartz
Question 12 Multiple Choice (Single Answer)

Which is an igneous rock formed from molten magma cooling slowly in the Earth's crust?

  1. Granite
  2. Slate
  3. Mudstone
  4. Marble
  5. Basalt
Question 13 Multiple Choice (Single Answer)

Put all the above giving sequence in a correct order?

Temperature changes can weather rocks.
Following are the some steps of weathering of rocks.
(1) rock expands
(2) rock cools down
(3) rock layers crack
(4) rock heats up
(5) rock contracts

  1. (5) (3) (1) (2) (4)
  2. (3) (2) (1) (4) (5)
  3. (1) (2) (4) (5) (3)
  4. (4) (1) (3) (2) (5)
  5. (2) (3) (4) (1) (5)
Question 14 Multiple Choice (Single Answer)

Which of the following rock formed from eroded rock particles?

  1. Marble
  2. Sandstone
  3. Granite
  4. Slate
  5. Basalt
Question 15 Multiple Choice (Single Answer)

Which of the following sequence most closely describes the process of formation of igneous rocks from metamorphic rocks?

  1. weathering, erosion, transportation, deposition, burial, pressure, cementation
  2. burial, melting, cooling
  3. weathering, erosion, burial, melting, cooling
  4. may involve burial first, heat and/or pressure, recrystallisation without melting
  5. melting, burial, cooling
Question 16 Multiple Choice (Single Answer)

Which of the following is commonly known as solidified sea scum?

  1. Common salt
  2. Chalk
  3. Talc
  4. Lime
  5. Plaster of Paris
Question 17 Multiple Choice (Single Answer)

Which of the following soil has the maximum water retaining capacity?

  1. Sandy soil
  2. Clayey soil
  3. Loamy soil
  4. Silty soil
  5. Chalky soil
Question 18 Multiple Choice (Single Answer)

Process of conversion of wood into coal is known as

  1. Carbocation
  2. Carbonisation
  3. Erosion
  4. Global warming
  5. Weathering
Question 19 Multiple Choice (Single Answer)

Which of the following is an ore of aluminium?

  1. Malachite
  2. Haematite
  3. Magnetite
  4. Bauxite
  5. Cuprite
Question 20 Multiple Choice (Single Answer)

Which of the following gives the red color to gem Ruby?

  1. Iron
  2. Titanium
  3. Carbon
  4. Chromium oxide
  5. Copper
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