section 2 Flashcards
smallest and closest plant to the sun
Mercury
second planet from the sun; has a dense atmosphere of mostly carbon dioxide and very high surface temps
Venus
third planet from the sun; the only planet in the solar system known to have life, and where water exists as a solid, liquid, and a gas.
Earth
fourth planet from the sun; called the red planet because of high concentrations of iron oxide
Mars
How did the solar system form
when a nebula collapsed
When did the earth form
4.6 billion years ago
What is mercury’s atmosphere like
It has no atmosphere
Which planet is referred to as Earth’s sister planet
Venus
What is Venus’s atmosphere like
it is very dense and hot
What states can water exist as on earth due to the temperatures
as a solid, liquid, or gas
What is mars also known as
the red planet
why is mars red
due to the iron oxide
how many moons does mars have
2
what are the names of mars moons
Phobos, Deimos
What do Phobos and Deimos mean
Phobos means fear and Deimos means panic
