Space
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Asteroid | Asteroids are small solar system bodies that orbit the Sun. Made of rock and metal, they can also contain organic compounds. Asteroids are similar to comets but do not have a visible coma (fuzzy outline and tail) like comets do.
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| Comet | A comet is a relatively small solar system body that orbits the sun. When close enough to the Sun they display a visible coma (a fuzzy outline or atmosphere due to solar radiation) and sometimes a tail.
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| Galaxy | A galaxy is a large group of stars, dust, gas and dark matter held together by gravity. They vary in size with some containing millions of stars while others could contain as many as a trillion.
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| Meteor | A meteoroid that burns up as it passes through the Earth’s atmosphere is known as a meteor. If you’ve ever looked up at the sky at night and seen a streak of light or ‘shooting star’ what you are actually seeing is a meteor.
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| Moon | The Moon is a natural satellite which orbits the Earth. It is around a quarter the size of Earth and can be easily seen in the night sky.
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| Planet | A planet is an object orbiting a star that is large enough to be rounded by its own gravity. It is also gravitationally dominant in its orbital area but not large enough to cause thermonuclear fusion (like stars do).
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| Star | A star is a huge, bright ball of burning gas that is held together by gravity. Stars contain mostly hydrogen as well as helium and smaller amounts of other elements. The Sun is the closest star to Earth.
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| Universe | The Universe is made up of everything that exists, including planets, stars, galaxies and all forms of matter and energy.
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| Solar System | The solar system includes the Sun and all the objects that orbit around it due to its gravity, including Earth.
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| Astornaut | An astronaut (also known as cosmonaut) is someone trained to be a crew member of a spacecraft. While the word astronaut usually refers to space travel professionals it can also include normal people who have the privilege of traveling into space.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
martinj2
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