The Earth Flashcards
List the six common elements in the Earth’s crust
Oxygen
Silicon
Aluminium
Calcium
Sodium
Magnesium
State what the atmosphere is
A mixture of gases that surround the Earth
Name the 3 groups of rock
Sedimentary
Igneous
Metamorphic
Describe the properties of sedimentary rock
Porous
List 4 stages in making sedimentary rock
Transport
Deposition
Compaction
Cementation
State the properties of Igneous rock
Hard
Durable
Describe the properties of state that naked it suitable for roofing tiles
Not porous and can be split into thin sheets
Describe one way that rocks change over time
Weathering can break down rock
State what is meant by uplift
When continents collide, huge forces from inside the Earth push rock upwards and mountains can form
Give two reasons to explain why carbon dioxide is a vital part of the atmosphere
Allows plants to make food by photosynthesis and heat up the planet to a habitable temperature
Name two processes that add carbon dioxide to the atmosphere
Combustion
Respiration
Name two processes that remove carbon dioxide from the atmosphere
Photosynthesis
Dissolving in oceans
Describe two ways that humans add more carbon dioxide to the atmosphere than is removed
Burning fuels
Deforestation
Describe the meaning of global warming
Extra carbon dioxide in the atmosphere has caused an increase in the average air temperature
State where all materials we use originally come from
Earth’s crust
Atmosphere
Oceans
