What feature of the Sun is found at letter A?
The number of observed sunspots, prominences, and flares increases in a cycle that occurs about every ____ years.
Our Sun is unusual because it does not belong to a(n) ____.
The reason that most solar winds do not disrupt electricity on the Earth is due to the Earth’s ______.
What Sun feature is found at letter B?
The Sun produces energy by fusing hydrogen atoms into helium atoms in the _____.
What are the Sun's layers of atmosphere from lowest to highest layer?
What Sun feature is found at letter C?
When we see the sun out during the day, we are viewing light that is coming from the ___________.
Our Sun is called a yellow dwarf because of its ______________ and ________________.
What layer of the Sun is located at letter D?
This layer of the Sun is only visible during a total solar eclipse.
The surface of the Sun.
Prominences and flares on the Sun are related to sunspots because they are all caused by ____.
Where the color of the Sun comes from.
Which of these common characteristics do only the outer planets share?
Choose the correct order of these celestial objects, from smallest to largest.
Which of these planets is mostly gas?
_____ keeps planets away from the sun, while _____ pulls planets toward the sun.
Proxima Centauri is the next closest star to Earth, after the Sun, and lies 4.22 light years away. This
means that when we go out on a clear night and look up at Proxima Centauri, we are seeing light that
left that star ______.
Copernicus thought the orbits of the planets were circular, but __________ showed them to be elliptical.
Later work by ______ resulted in the development of the _________ model of the solar system, marking
the beginning of modern astronomy.
All of the known dwarf planets except Ceres orbit in the ___.
If the mass of the Earth suddenly and magically increased by 50%, what would happen to the Moon’s orbit?
The ____ of two objects and the distances between them determine the gravitational attraction between the objects.
The inner planets are ____ and have ____ surfaces.
In the table below are some of the steps in the formation of a new star and solar system. Choose the correct order of steps from the four choices below, with 1 representing the first step, and 5 the last step.
All of the outer planets have many ____, which range in number from 13 to more than 60.
All of the gas giants’ atmospheres are made up primarily of helium and ____.
When a meteoroid enters Earth’s atmosphere, it produces a streak of light called a(n) _____.