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10 questions
The formula for carbon dioxide is:
H2
CO
CO2
C2O
To test for carbon dioxide you use...
lime
lime juice
limestone
limewater
In the Early Earth's atmosphere there was no what?
oxygen
carbon dioxide
water vapour
nitrogen
When water vapour turns into liquid water it's called...
melting
condensing
evaporating
sublimation
The oceans formed because
the earth got hotter & ice melted
the earth cooled and vapour condensed
plants released water
volcanoes released liquid water
2 greenhouse gases are:
oxygen and argon
oxygen and carbon dioxide
carbon dioxide and methane
nitrogen and water vapour
Identify ALL the consequences of global warming:
melting ice caps
increased sea levels
more unpredictable weather
destroy the ozone layer
How much oxygen is in TODAY'S atmosphere?
80%
40%
21%
100%
Relighting a lit splint tests for which gas?
oxygen
carbon dioxide
chlorine
hydrogen
Burning fuels releases which gas?
O2
CO2
CH4
H2
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