Podcast
Questions and Answers
Which of the following are the inner planets of the solar system?
Which of the following are the inner planets of the solar system?
What are the common characteristics of the inner planets?
What are the common characteristics of the inner planets?
How many planets are there in our solar system?
How many planets are there in our solar system?
What is the order of the inner planets from closest to furthest from the Sun?
What is the order of the inner planets from closest to furthest from the Sun?
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What is thought to have formed the solar system billions of years ago?
What is thought to have formed the solar system billions of years ago?
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What resulted in the formation of multiple dust particles and gas?
What resulted in the formation of multiple dust particles and gas?
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What acted upon the fragments that began to orbit around the Sun?
What acted upon the fragments that began to orbit around the Sun?
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Which planet is named after the Roman god of commerce?
Which planet is named after the Roman god of commerce?
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Which planet is the hottest in the solar system?
Which planet is the hottest in the solar system?
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Which planet spins clockwise unlike other planets?
Which planet spins clockwise unlike other planets?
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Which planet is known as the red planet?
Which planet is known as the red planet?
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Which planet has a year lasting 365 Earth days?
Which planet has a year lasting 365 Earth days?
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Which planet has a day lasting about 1407 hours?
Which planet has a day lasting about 1407 hours?
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Which planet is 228 million kilometers from the Sun?
Which planet is 228 million kilometers from the Sun?
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Which planet is composed of silicates and metals?
Which planet is composed of silicates and metals?
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Study Notes
The Inner Planets: Mercury, Venus, Earth, and Mars
- Mercury is 46 million to 70 million kilometers away from the Sun, with temperatures ranging from -300 to 800 degrees Fahrenheit.
- A Mercurian year lasts 88 Earth days, but a day on Mercury is about 1407 hours long.
- Mercury is named after the Roman god of commerce, Mercurius, and is the smallest planet in the solar system, shrinking every year.
- Venus is the second inner planet, 108 million kilometers from the Sun, with a year lasting 224 Earth days and a day lasting 5830 hours.
- Venus is the hottest planet in the solar system, with an average temperature of 870 degrees F, and it spins clockwise, unlike other planets.
- Earth, the third inner planet, is 150 million kilometers from the Sun, with a year lasting 365 days and a day lasting 24 hours.
- About 70% of Earth's surface is water, and it has one large satellite, the Moon.
- Mars, the fourth inner planet, is 228 million kilometers from the Sun, with a year lasting 687 Earth days and a day lasting about 24.5 hours.
- Mars is known as the red planet, has a diameter of about 6800 km, and has two moons.
- Inner planets formed from smaller dust and particles in the original solar nebula, with high temperatures allowing metal and rock to condense.
- The inner planets are composed of silicates and metals, with denser compositions compared to the outer planets made of gas, ice, and rocks.
- The inner solar system consists of the four inner planets and the asteroid belt, with the frost line marking the boundary between the inner and outer solar systems.
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Description
Test your knowledge of the inner planets - Mercury, Venus, Earth, and Mars - with this informative quiz. Explore key facts about their distances from the Sun, temperatures, orbital periods, and unique characteristics. Gain a deeper understanding of the composition and formation of the inner planets, and discover intriguing details about their place in the solar system.