SOLAR SYSTEM Flashcards
The smallest planet in our solar system.
Mercury.
It is the second planet orbiting around the Sun.
Venus.
75% water and 25% land.
Earth.
It is reddish orange color because of the presence of iron oxide (rust). Its
atmosphere contains 95% carbon dioxide, 3% nitrogen and 2% argon.
Mars.
The Terrestrial Planets
Mercury.
Venus.
Earth.
Mars.
It is the largest planet with metallic hydrogen core in our solar system.
Jupiter.
The beautiful rings of Saturn are made up of billions of ice particles.
Saturn.
It is the seventh planet from the Sun.
Uranus.
It is the farthest planet from the Sun and 4% smaller in diameter than Uranus.
Neptune.
It is also known as “Buffon’s Collision Theory” or “Buffon’s Sun-Comet Collision Theory”
which states that there is a rogue star passed closed to the sun and stripped materials from both
the sun and the rogue star.
Encounter Hypothesis
The Jovian Planets (The Gas Giants)
Jupiter.
Saturn.
Uranus.
Neptune.
also known as “Kant-
Laplace Theory” which states that
the entire Solar System starts as a
large cloud of gas that contracted
due to self-gravity.
Nebular Hypothesis
The present working model
for the formation of the Solar
System
Protoplanet Hypothesis
