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16 Cards in this Set
- Front
- Back
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What is the order of the water cycle? |
evaporation, transpiration, condensation, precipitation, run-off, percolation |
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What is effecting the carbon system? |
Climate change and the burning of fossil fuels |
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What is the importance of the nitrogen cycle? |
It is essential for plant growth |
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What is the Southern Oscillation? |
An irregular variation in winds that causes El Nino and La Nina |
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What is the Indian Ocean Dipole? |
Irregular oscillation of sea-surface temperatures |
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What is the name of the theory that entails the creation of the universe? |
Big Bang |
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What is red shift? |
The change in galaxy wavelengths (moving away) |
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What is the function of a spectroscope? |
To separate light into it's basic component colours |
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What happens to a star's wavelength when it moves towards you? |
The wavelengths become compressed |
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What happens to a star's wavelength when it is moving away from you? |
The wavelengths get longer |
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What did Edwin Hubble notice about the movement of galaxies? |
They move both towards and away from each other in a cycle |
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What 2 characteristics does the Hertzsprung-Russel diagram compare? |
size and colour |
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What can the colour of a star tell astronomers? |
Size and temperature |
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Life-cycle of a small- medium star in order: |
nebula, protostar, main sequence, red giant , planetary nebula, white dwarf |
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Life-cycle of a massive star: |
nebula, protostar, main sequence, red supergiant, super nova, neutron star or black hole |
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What is the difference between apparent magnitude and absolute magnitude? |
Apparent magnitude- as it is seen from earth Absolute magnitude- factors in distance |
