Rocks - Chapter 2.1

Question 1

Name the three groups of rock.

Answer 1

Igneous, Sedimentary and Metamorphic.

Question 2

How are rocks classified or grouped?

Answer 2

They are classified by the texture, mineral content, colour, hardness and how it was formed.

Question 3

Name an example of an igneous rock.

Answer 3

Basalt/Granite.

Question 4

Name an example of a sedimentary rock.

Answer 4

Limestone/Sandstone/Shales

Question 5

Name an example of a metamorphic rock.

Answer 5

Quartzite/Marble

Question 6

Igneous rocks are formed as a result of ___ ___. Hot molten magma cooled down and ___, either on the surface or within the crust.

Answer 6

volcanic activity, solidified.

Question 7

Sedimentary rocks were formed from the remains of other ___, ___ life and ___ life. These sediments were deposited on the beds of ___ and ___ as well on lands. They were then compressed and cemented together.

Answer 7

rocks, plant, animal, seas, lakes.

Question 8

Metamorphic rocks are those that have been changed in shape or form by great ___ and ___. They have already existed as ___ rocks and ___ rocks before being changed.

Answer 8

heat, pressure, igneous, sedimentary.