Available Answers

1. 1.

   List the three conditions necessary for formation of metamorphic rocks.

2. 2.

   Choose the correct option. (MCQs)

   1. Shale and slate are examples of
      1. magma
      2. lava
      3. sediments
      4. rocks
   2. Fossils are most likely to be found in
      1. sedimentary rocks
      2. igneous rocks
      3. soil
      4. metamorphic rocks
   3. Weathering of rocks means that rocks get
      1. compacted
      2. blasted
      3. cemented
      4. eroded
   4. Sedimentary rocks are easiest to identify because of the presence of
      1. layers
      2. crystals
      3. fossils
      4. minerals
3. 3.

   Write one word for the following.

   1. Molten rocks inside the Earth:
   2. Surface layer of the Earth:
   3. A very light igneous rock with holes in it:
   4. A fossil fuel formed from compressed plant matter:
   5. Inorganic matter that rocks are made of:
4. 4.

   Fill in the blanks.

   1. Sedimentary rocks are formed from _____________.
   2. _____________ is a metamorphic rock.
   3. Coal and petroleum are _____________.
   4. _____________ is an igneous rock formed by quick cooling of lava and is used in making jewellery.
   5. _____________ is a soft mineral used to make talcum powder.
   6. Wind and solar energy are _____________.
5. 5.

   Name the three layers of the Earth.

6. 6.

   What is the difference between magma and lava?