Grade 6 Astronomy Crossword Puzzle
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A Fast Facts quick review of grade 6 astronomy.
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Topics of this game:
- Aristotle and Ptolemy were two early ___ believed that the sun orbited the earth and the earth was the center of the universe.
- He was the first to say that the sun was the center of the solar system and the planets orbited around the sun.
- He was an Italian astronomer who improved the telescope.
- He theorized that gravitational force keeps the planets orbiting the sun.
- This is the shape of each planet's orbit around the Sun.
- The first four planets are the ___ planets because they are closest to the Sun.
- Mercury, Venus, Earth, and Mars are also known as the ___ planets.
- The inner planets are ___ ___ ___ and they are relatively close to each other.
- The four remaining planets are the ___ planets because they are the farthest away from the Sun.
- The outer planets are large and ___, and they are relatively very far apart.
- Pluto is now considered a ___ ___.
- A dwarf planet can revolve around the sun, maintain a nearly round shape, but can't move other objects away from its orbital ___.
- This planet has the greatest temperature range.
- This planet is the hottest planet.
- Venus and Earth are very similar in size so we call Venus Earth's ___.
- Scientific evidence indicates that Earth is about 4.5 ___ years old.
- The period of ___ is one spin on an axis.
- For a planet, one rotation is one ___.
- These are caused by the relationship of the tilt of the earth's axis and its revolution around the Sun.
- The period of ___ is when an object travels around another.
- For a planet, one revolution is one ___.
- This planet has the longest year because it is the furthest from the Sun.
- The shortest day of the year for the Northern Hemisphere is called the ___ ___.
- The longest day of the year for the Northern Hemisphere is called the ___ ___.
- During the summer solstice the ___ Hemisphere is tilted towards the Sun.
- During the winter solstice the ___ Hemisphere is tilted towards the Sun.
- The Northern and Southern Hemispheres have ___ seasons.
- This is when the length of day and night are equal. They are the first day of fall and spring.
- We see different phases of the moon because of its revolution around Earth.
- The moon takes the ___ ___ to rotate and revolve around Earth.
