Year 8: Geology review

Metamorphic rocks are...

• Composed of lava or magma that has cooled to form a solid rock

• Composed of rocks that have been changed by heat and/or pressure

• Composed of small particles called sediments

Metamorphic rocks made after experiencing

• Wind and erosion

• Water evaporating

• Heat and pressure

• Rapid cooling

The earth's crust is broken up in massive continents called

• Dinner plates

• The mantle

• The inner core

• Tectonic plates

When tectonic plates move and smash into one another they cause extreme

• Pressure

• Heat

• Heat and pressure

• Sedimentation

Contact metamorphism occurs when

• hot magma rises up through the mantle heating rocks above it

• large tectonic plates smash into one another causing extreme heat and pressure on colliding rocks

Regional metamorphism occurs when

• hot magma rises up through the mantle heating rocks above it

• large tectonic plates smash into one another causing extreme heat and pressure on colliding rocks

Which is not true of rocks undergoing extreme heat and pressure they can

• Melt and reform into new rocks

• Form sedimentary rocks

• Melt and form new crystals

• Change the shape of existing layers of the rock

Diamonds forms from

• Carbon undergoing extreme heat and pressure

• Sediments being buried under lots of layers of sediments

• Lava being cooled rapidly as it comes out of a volcano

• Iron being super heated in the inner core

When metamorphic rocks can form defined layers or bands as they undergo heat and pressure. This process is called

• Sedimentation

• Exfoliation

• Foliation

• Heat and pressure

When granite undergoes high heat and pressure it turns into...

• Gneiss

• Marble

• Quartzite

• Slate

• Schist