Questions and Answers
Earth is in a galaxy called ______.
Milky Way
The solar system includes a central star, called the ______.
sun
The ______ is the Earth's only satellite.
moon
Galaxies are a collection of gas, dust, planets and ______.
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The universe is too big to ______.
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Earth is a part of the solar system with seven other ______.
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There are millions and millions of ______ in it.
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The ______ is in a galaxy called the Milky Way.
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The ______ system includes a central star, called the sun, and eight planets that orbit it.
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Some planets have natural satellites, others ______.
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Study Notes
The Universe
- The universe is extremely vast and contains millions of galaxies.
- Everything that exists is within the universe.
Galaxies
- A galaxy is a collection of gas, dust, planets, and stars.
- The Milky Way is a spiral-shaped galaxy that contains Earth.
The Solar System
- The solar system consists of a central star, the Sun, and eight planets that orbit it.
- The eight planets in our solar system are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
- Some planets have natural satellites, while others do not.
- The Moon is the Earth's only natural satellite.
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