Give a comparative description of the planets of the earth group according to the plan: a) remoteness from the Sun; b) dimensions; c) surface; d) atmosphere; e) satellites.
A) Mercury, Venus, Earth, Mars.
B) Mercury, Mars, Venus, Earth.
C) Mercury – mountains and craters. Venus is basically a hilly plain. Earth – mountains, hills, plains, vast bodies of water (70% of the surface). Mars – desert craters and mountains.
D) Mercury – there is practically no atmosphere. Venus is a dense cloudy atmosphere, consisting mainly of carbon dioxide. Earth – The atmosphere is made up of nitrogen, oxygen and a small amount of carbon dioxide. Mars is a thin rarefied atmosphere of carbon dioxide.
E) Earth – moon satellite. Mars – two satellites: Phobos and Deimos.
|Physical characteristics of the planets
|Mass (in Earth masses)
|Diameter (in Earth diameters)
|Density, kg / m ^ 3
||9 h 55 min
||10 h 40 min
||17 h 14 min
||16 h 7 min
|Atmosphere: temperature, ° C; chemical composition
||90% H, 10% He
||96% H, 4% He
||83% H, 15% He, 2% CH (4)
||80% H, 19% He, 1% CH (4)
|Number of satellites
|Names of the largest satellites
||Io, Europe, Ganymede, Callisto, Amalthea
||Titanium, Rhea, Iapetus, Dion, Tefiya
||Ariel, Oberon, Umbriel, Desdemona, Juliet
||Triton, Nereid, Proteus, Larissa, Thalassa
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