Sun Structure
Sun Features
Calendar & Seasons
Rotation and Revolution
Solstice & Equinox
100
The inner most layer of the Sun.
What is the core?
100
Areas of gas on the sun's surface that are cooler than the gases around them and appear darker.
What are sunspots?
100
A system of organizing time that defines the beginning, length, and divisions of a year.
What is a calendar?
100
An imaginary line that passes through Earth's center and the the North and South poles.
What is an axis?
100
When the sun appears farthest north of the equator once each year and farthest south once each year, June 21st and December 21st.
What is a solstice?
200
The layer of the sun that has currents of gases that transfer energy.
What is the convection zone?
200
Electrical particles that come from the sun and spread through the solar system.
What is solar wind?
200
The basis of calendars that ancient Egyptians created.
What are star formations?
200
The path of an object as it revolves around another object in space.
What is an orbit?
200
The days when day and night are about 12 hours long, March 21st and September 22nd.
What is an equinox?
300
The outermost layer of the atmosphere of the Sun.
What is the corona?
300
Huge loops or arches of gas that often link regions of sun spots.
What is a promenince?
300
The reason that earth receives more direct sunlight at different times in its revolution and because of this has seasons.
What is the tilt of the Earth's axis?
300
The spinning of the Earth on its axis.
What is rotation?
300
The solstice that occurs in the southern hemisphere when the winter solstice occurs in the northern hemisphere.
What is the summer solstice?
400
The inner, visible layer of the Sun's atmosphere.
What is the photosphere?
400
A gas eruption into space that occurs when prominences suddenly connect.
What are solar flares?
400
The adjustment that was made to the calendar to add one day, February 29th, every fourth year to compensate for the extra 1/4th day in our revolution.
What is a leap year?
400
The movement of one object around another.
What is revolution?
400
One day, 24 hours, twice a year when the duration of day equals the duration of night.
What is the length of the equinox?
500
The middle layer of the Sun's atmosphere that can be seen during a total solar eclipse.
What is Chromosphere
500
The colorful glow that can be seen at both poles, caused by the electromagnetic particles interacting in our atmosphere.
What are auroras?
500
The season that occurs in the Southern hemisphere when it is summer in the Northern hemisphere.
What is winter?
500
Without it we would not experience night and day.
What is Earth's rotation?
500
The equinox that occurs in the Northern hemisphere when it is the fall equinox in the Southern hemisphere.
What is the spring equinox?
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