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GUIDING QUESTIONS
1.Which are the four inner planets?
Mars, Mercury, Venus, Earth.
2.Which is the smallest inner planet?
Mercury.
3.How are the inner planets alike and different?
They are small, closest the sun, and have rocky surfaces, also are called terrestrial. Venus and Mercury don´t have moons, Earth has 1 and Mars 2, all spin slowly but with different times, the earth is the only planets that have life and water.
4.Why are the inner planets called terrestrial?
Are relating with Earth, they have compact, and rocky surface.
5. Does Mercury have an atmosphere?
No.
6. Explain why Mercury has no atmosphere.
Mercury has almost no atmosphere. The planet's small size means that its gravity is too weak to hold down a normal atmosphere. ... Mercury's thin atmosphere is constantly being "blown away" into space by the pressure of sunlight and by the solar wind. Gases are constantly being added to Mercury's atmosphere, too.
7. Would there be wind on Mercury?
Since Mercury has hardly any atmosphere, it does not have weather like storms, clouds, winds, or rain.
8. Which gas makes up the most of Venus’s
atmosphere?
The atmosphere of Venus is the layer of gases surrounding Venus. It is composed primarily of carbon dioxide and is much denser and hotter than that of Earth.
9. How many moons do Mercury, Venus and Earth
have in total?
Mercury don´t have moon, nether Venus, Earth 1, Mars 2. In total are 3 moons in the inner planets.
10. What gives the soil on Mars its reddish color?
Wind eroded these surface rocks and soil, and ancient volcanos blew out the iron, spreading it all over the planet. When this happened, the iron within the dust reacted with oxygen, producing a red rust color. So,
