Metamorphic Rocks
Science: KS3, topic 2.5.5
Metamorphic Rocks
Metamorphic rocks are rocks that have changed from either igneous or sedimentary rocks because of intense heat and pressure.
Metamorphic Rocks
- Metamorphic comes from the Greek meaning to change form.
- They are transformed from either igneous or sedimentary rocks.
Formation and appearance
- Metamorphic rocks are formed under intense heat and pressure.
- They can look squashed and even banded.
- Crystals can appear large.
- Crystals can appear to be aligned in the same direction.
Examples and their uses
- Slate – from Shale/Mudstone (Sedimentary) – used on roofs, gravestones and even in snooker tables.
- Marble – from limestone (Sedimentary) – kitchen tops, gravestones and other home furnishings.
Test yourself on Metamorphic Rocks
Which of these is NOT a metamorphic rock?
Choose the true statement about metamorphic rocks in each pair
Which of these is a genuine use of marble?
Mud settled on a lake bed, then was heated and squeezed deep underground until it changed. What rock has it become?
Which process would turn a sedimentary rock into a metamorphic rock?