The Solar System
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
+1
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What are the inner planets?
Back
The inner planets are the four planets closest to the Sun: Mercury, Venus, Earth, and Mars. They are primarily composed of rock and metal.
2.
FLASHCARD QUESTION
Front
What are the outer planets?
Back
The outer planets, also known as gas giants, include Jupiter, Saturn, Uranus, and Neptune. They are mostly made up of gases and are much larger than the inner planets.
3.
FLASHCARD QUESTION
Front
What is a dwarf planet?
Back
A dwarf planet is a celestial body that orbits the Sun and is similar to a planet but does not clear its orbital path of other debris. There are five recognized dwarf planets in the Solar System.
4.
FLASHCARD QUESTION
Front
What is a comet?
Back
A comet is a small celestial body made of ice, dust, and rocky material that, when close to the Sun, displays a bright head and a long tail.
5.
FLASHCARD QUESTION
Front
What is an asteroid?
Back
An asteroid is a small rocky body that orbits the Sun, primarily found in the asteroid belt between Mars and Jupiter.
Tags
NGSS.MS-ESS1-3
6.
FLASHCARD QUESTION
Front
What is the main difference between planets and stars?
Back
Planets orbit stars and do not produce their own light, while stars generate light and heat through nuclear fusion.
7.
FLASHCARD QUESTION
Front
What is an astronomical unit (AU)?
Back
An astronomical unit (AU) is a standard unit of measurement used in astronomy to describe distances within the Solar System, equal to the average distance from the Earth to the Sun, approximately 93 million miles or 150 million kilometers.
Tags
NGSS.MS-ESS1-3
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