Questions and Answers
Earth is the ___
third planet from the sun
How many planets are there in our galaxy?
8-9 planets
What is the name of our galaxy?
Milky Way
Our sun is the only ____ in our solar system.
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Name the nine planets in our solar system.
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1 astronomical unit is ___
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Light travels at ___
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Light year is the ______.
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Earth's axis is tilted ____ degrees.
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Earth rotates once every _____
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Rotation causes ___
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The direction Earth rotates is ____
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Earth revolves around ____
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Study Notes
Planetary Facts
- Earth is the third planet from the Sun in our solar system.
- There are 8 to 9 planets located within our galaxy, the Milky Way.
- The solar system's only star is our Sun.
List of Planets
- The nine recognized planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.
Astronomical Measurements
- One astronomical unit (AU) is the average distance from Earth to the Sun, approximately 150 million kilometers.
- Light travels at a speed of 300,000 kilometers per second.
- A light year measures the distance light travels in one year.
Earth's Rotation and Revolution
- Earth's axis is tilted at an angle of 23.5 degrees.
- The planet rotates once every 24 hours, resulting in day and night as well as temperature variations.
- Earth's rotation occurs in a counterclockwise direction.
- The planet revolves around the Sun, which contributes to the changing seasons.
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Description
Test your knowledge about Earth and its place in the solar system with these flashcards. Learn interesting facts about our planet, the Milky Way galaxy, and the other planets that orbit the sun. Perfect for students of astronomy or anyone curious about space.
