Earth
Sun
Earth 2
Sun 2
Vocabulary
100
This causes the Earth's seasons.
What is the tilt of the Earth?
100
The word "solar" refers to this object.
What is the "sun"?
100
It takes this long to spin its axis.
What is 24 hrs?
100
The majority of the sun's mass is made of ________________
What is hydrogen?
100
An imaginary line though the center of the earth, around which the earth rotates.
What is Axis?
200
The shape of the Earth
What is a "sphere"?
200
The sun is a big fiery ball of gas called this.
What is a "star"?
200
Earth is the _______ planet from earth?
What is third?
200
Why the sun seem so close to earth?
Because its the closest star to earth.
200
The act of spinning on an axis. It takes earth 24 hrs to complete it.
What is a rotation?
300
The Earth takes this long to revolve around the sun.
What is 365 1/4 days?
300
The sun rises in this direction.
What is the "east"?
300
Earth has this and this allows us to have life on earth.
What is an atmosphere?
300
This object is used to study far away objects in the sky.
What is a "telescope"?
300
A closed curved path that an object follows as it moves around another object.
What is an orbit?
400
When it is winter in North America, it is this in Australia.
What is "summer"?
400
The sun is the source of all _______________ on earth.
What is a "energy"?
400
This helps keep track of the days in a year.
What is a calendar?
400
A ball of hot, burning gases.
What is a star?
400
Movement of an object in an orbit around another object.
What is a revolution?
500
This causes day and Night.
The earth rotating on its axis.
500
This is how the sun's rays strike the Earth in the summer.
What is "directly"?
500
What is the difference between a rotation and revolution?
A rotation happens on the objects own axis, and the revolutions happens when an object revolves another object.
500
When an object has its own light its is__________________
What is self-luminous?
500
Dark patches on the surface of the sun that are cooler than the other gases around it
What are sunspots?
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