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15 Cards in this Set

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  • Back
  • 3rd side (hint)
Earth is a small, solid planet located in the _______ ______ Galaxy.
Milky Way
The Milky Way is a ______ shaped galaxy.
spiral
The _____ is at the center of our solar system.
Sun
There are ______ planets orbiting the Sun.
nine
Earth is the ______ planet from the Sun.
third
One _______ of the Earth around the sun takes about _____ days and is called a ______.
revolution; 365.25; year
None
The Earth ______ on its axis.
rotates
It takes the Earth _____ hours for one full rotation. This is called a _____.
24; day
None
The _____ is an imaginary line that runs through the planet from top to bottom.
axis
Earth is the only planet of our solar system with large quantities of _______ _______.
liquid water
Earth's moon orbits it every _____ days.
28
The moon _______ light from the Sun.
reflects
The four layers of the Earth are the _____ _____, _____ _____, _____ and _____.
inner core, outer core, mantle, crust
Earth is the only planet known to support _____.
life
Earth is not a perfect sphere, it is ______, meaning it is slightly flattened at its top and bottom.
oblate