Rock Types

Question 1

Describe a sedimentary rock.

Answer 1

Made from particles (sand, shells, pebbles).
Compressed making it harden.
Crumbly texture and contains fossils.
LIMESTONE & CONGLOMERATE.

Question 2

Describe a metamorphic rock.

Answer 2

Slipped under earths crust and met intense heat and pressure.
It sometimes forms a ribbon-like strata and sometimes crystals.
The word metamorphisis means change.
MARBLE & GNEISS

Question 3

Describe and igneous rock.

Answer 3

When magma hardens and cools.
If it cools quickly enough, it can be shiny and gloss-like.
Sometimes there are holes from gas bubbles.
BASALT & OBSIDIAN