Earths materials Flashcards
All living things are made of
Carbon
The name of the movement that describes how Carbon moves through atmosphere, plants and animals
Carbon Cycle
When a fuel burns in oxygen to release energy
Combustion
Definition of ‘decomposition’
Dead material breaking down due to microbes (bacteria etc)
Definition of ‘Extraction’
Something being removed from something else
What word describes this - process where green plants use sunlight to make food from carbon dioxide and water’
Photosynthesis
What word describes this - process where living things take in oxygen to release energy from food
Respiration
What word describes this - living things getting rid of waste material
Excretion
State the 3 fossil fuels
Coal, Crude oil, Natural gas
Coal is formed from…
Dead plant material buried for millions of years by sand and clay and minerals, heat and pressure turn it into coal
Crude oil and natural gas is formed from…
Millions of years ago, animals and plants died and fell to the bottom of the sea and were covered by sand. Through high pressure and heat the remains turned into crude oil and natural gas
Finite fuel
A fuel that will run out (Coal oil and gas)
What does fire need? (think fire triangle!)
Oxygen, Heat, Fuel
State what is meant by conservation of mass during a chemical reaction
The mass before (reactants) = the mass after (products)
Hydrocarbons are made of
Hydrogen and Carbon
Sulphur Dioxide in the air produced by burning fossil fuels causes
Acid rain!
This gas produced by burning fossil fuels causes global warming
Carbon Dioxide
Exothermic reaction
Heat energy is given out, causing the temperature of the surroundings to rise
Endothermic reaction
Heat energy is taken in, causing the temperature of the surrounding to decrease
In fractional distillation the smaller molecule hydrocarbons are found at the top or bottom?
Top
In fractional distillation large molecules are used to
Tar roads, fuels for ships and power stations
In fractional distillation the lower the boiling point the more volatile the hydrocarbon produced, true of false
TRUE
