What is a fuel formed from the remains of living organisms?
biofuel
Solid → Liquid = ?
melting
What is conduction?
heat transfer from particle to particle.
Name a greenhouse gas.
Carbon Dioxide
Methane
Water Vapour
Energy from the sun = ?
solar power
What are gases that trap heat in the atmosphere?
greenhouse gases
Gas → Solid = ?
sublimation
What is convection?
hot particle rise, cold particles sink
Name an example of where we are seeing global climate change.
Various correct answers:
ice caps melting
sea levels rising
stronger and more frequent storms
Energy from plant matter or animal waste = ?
bio fuel
What is the gradual warming of the Earth?
global warming
List all six changes of state.
melting
freezing
evaporation
condensation
sublimation
deposition
What is radiation?
heat transfer in waves
Name two human activities contributing to warming.
transportation
factories/ industry
farming
producing electricity
Energy from underground heat = ?
geothermal
What is the process where greenhouse gases trap heat on Earth?
Greenhouse Effect
Liquid → Gas = ?
evaporation
Example of conduction in real life
Different correct answers:
E.g. pan handle getting warm.
the heat passing along a metal spoon.
Name two natural processes that add greenhouse gases.
decomposition (rotting)
volcanoes erupting
animals farting and belching
Energy from dammed water = ?
hydropower
What is a long-term change in region’s average weather?
Gas → Solid directly = ?
deposition (though I taught you sublimation!!)
Give an example of radiation in real life.
Various correct answers:
sun's warmth coming to earth.
heat from a camp fire.
Which two sectors produce the most U.S. greenhouse gas emissions?
transportation and electrical production
Energy from tides = ?
tidal power