Earth Flashcards
Name the three layers of the Earth
Crust
Mantle
Core (outer)
Core (inner)
State what a mineral is
Rocks that are mixtures of naturally-occurring elements or compounds
List the six most common elements in the Earth’s crust
Oxygen Silicon Aluminium Iron Calcium Sodium
Name the three groups of rock
Sedimentary rocks
Igneous rocks
Metamorphic rocks
Describe the properties of Sedimentary rocks
They have separate grains
Porous
Soft
Can scratch easily
List four stages in the making of Sedimentary rocks
Weathering\ Erosion Transport / Deposition Compaction and cementaltion
State the properties of igneous rocks
Hard
Durable
Describe how marble and slate are formed
Limestone heats under ground. Properties change and turn it into marble
Mudstone is pressured under ground and becomes slate
Describe the properties of slate that make it useful for roofing tiles
Not porous
Has layers
Can be split into sheets
Describe one way that rocks change over time
Weathering
State what is meant by uplift
Huge forces push rocks upward when continents collide
State the number of planets in our solar system
8 (9 including Pluto)
List the planets in size order
Mercury Mars Venus Earth Neptune Uranus Saturn Jupiter
Write down what happens to light from the sun when it hits a planet
It reflects
Name the model of the Universe with the Earth at the centre
Geocentric