Apologia Astronomy lesson 13
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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| One of the most important stars is the North Star, also called _________________. | Polaris
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| Polaris got its name because the _____________ ___________ is always pointed toward it. | North Pole
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| A ______________ is an object similar to our Sun which produces lots of energy. | star
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| An __________________ is a set of stars that form an easily recognizable shape. | asterism
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| Polaris is part of which asterism? | Little Dipper
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| The Little Dipper is part of which constellation? | Ursa Minor (which means "little bear")
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| The Big Dipper is part of which constellation? | Ursa Major (which means "great bear")
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| The brightest star in the sky is _____________. | Sirius
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| When one star orbits another star, it is called a double star system. Another name for this is a ________________ __________________________. | binary star system
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| Stars that are dying are called _____________________________ stars. | white dwarf
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| As a star runs out of fuel and begins to die, it starts to collapse in on itself. Sometimes the star has a lot of mass which generates a lot of heat and causes the star to explode. This explosion is called a __________________. | supernova
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| If the core of a dying star is left behind and has a large mass, it will start to pull everything in with its gravity causing a _______________ _____________. | black hole
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| Have scientists ever seen a black hole? | No, because there is no light coming from a black hole, they cannot see if with a telescope.
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| Have scientists ever seen a supernova? | Yes, in February 1987, three astronomers in different areas saw a supernova.
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| The "footprint" left behind by a supernova contains gases, dust and debris, and it is called a __________________. | nebula
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| __________________ ___________ can have changes in temperature and energy output over time. Thankfully, our Sun is not like this! | Variable stars
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| Stars can be categorized in three ways. Name these ways. | (1)Hot or cold, (2) Bright or dim, and (3) Big or small
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| Stars are assigned ___________________ to show how hot or cold they are. | letters
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| Stars are assigned __________________ to show how bright or dim they are. | numbers
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| Stars are assigned _______________ __________________ to show how big or small they are. | Roman numerals
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| Our Sun is categorized as a ______________. (This answer should include the letter, number and Roman numeral measures for the Sun.) | G-5V
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| The largest star we know about is named _______________. | Betelgeuse
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| What does the term "light year" mean? | It is the distance that light can travel in a year.
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| What is the speed of light? | 186,000 miles per second
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| List the four types of galaxies. | (1) spiral, (2) elliptical, (3) lenticular and (4) irregular
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| Earth is in a galaxy named the ____________ __________. | Milky Way
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| The Milky Way is what type of galaxy? | spiral
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| ______________________ are patterns formed in the sky by stars. | Constellations
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| Many people believe that God created the constellations to tell the story of _______________. | Jesus
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| __________________ is a religion in which people put their faith in the stars and check their "horoscopes" daily. | Astrology
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| Astrology is basically a form of ____________ ________________. | idol worship
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| A star map, also known as a _________________, will help you find constellations in the sky, however you should get one based on your latitude in order for it to be accurate. | planisphere
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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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