Earth and universe Flashcards
Outer layer of earth (4)
Crust
Earth layer (3)
Mantle
Earth layer (2)
Outer core
Centre of earth (1)
Inner core
Properties of sedimentary rock
Layers
Grains
Fossils
Formation if metamorphic rock
Earth movements make them buried or squeezed together
Heated and put under pressure
Minerals they have changed making metamorphic rock
Properties of metamorphic rock
Shale
Slate
Schist
Gneiss
Properties of igneous rock
Hard grainy no layers no fossils
What are fossils
Remains of dead organisms
Process of fossil formation
Fossilisation
Types of weathering
Physical
Chemical
Biological
Physical weathering
Freeze thaw
Chemical weathering
Acid rain
Biological weathering
Roots grow through rock splitting it
Solar eclipse
Moon orbits between earth and sun blocking light from sun
Lunar eclipse
Earth blocks most light from moon but some light gets through so it looks red