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Questions and Answers
What are the two largest planets primarily composed of?
What are the two largest planets primarily composed of?
- Substances with high melting points
- Water, ammonia, and methane
- Hydrogen and helium (correct)
- Rock and metal
Which planet has the most mass after the Sun?
Which planet has the most mass after the Sun?
- Saturn
- Uranus
- Jupiter (correct)
- Neptune
What is the composition of Uranus and Neptune mainly made up of?
What is the composition of Uranus and Neptune mainly made up of?
- Water, ammonia, and methane (correct)
- Substances with high melting points
- Hydrogen and helium
- Rock and metal
Which type of planets are Mercury, Venus, Earth, and Mars?
Which type of planets are Mercury, Venus, Earth, and Mars?
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What is the ecliptic?
What is the ecliptic?
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Study Notes
Composition of Planets
- The two largest planets, Jupiter and Saturn, are primarily composed of hydrogen and helium gases.
- Jupiter has the most mass after the Sun, making it the largest planet in our solar system.
Ice Giants
- Uranus and Neptune are mainly composed of water, ammonia, and methane ices, with a small rocky core at their center.
Inner Planets
- Mercury, Venus, Earth, and Mars are classified as terrestrial planets, meaning they are small, rocky, and have a solid surface.
Celestial Mechanics
- The ecliptic is the imaginary plane of the Earth's orbit around the Sun, which is used as a reference point for measuring the orbits of other planets and celestial objects.
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