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12 Cards in this Set

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  • Back
______ sun rays fall straight on the surface of Earth.
direct
What are the four periods of the year called?
seasons
How many high tides do most places have in one day?
2
How many planets have scientists found in our solar system?
9
The _______ side of the moon is closest to the sun during a solar eclipse.
lighted
When it is summer in the US the _______ is tilted toward the sun.
north pole
How long does it take the Earth to complete one revolution?
one year
Earth turns around an imaginary line through its center called _________.
an axis
Which of the following is closest to Earth?
The sun, Mars, the moon, or Venus
the moon
What is the main cause of tides?
The pull of gravity between the Earth and the moon
The moon gets dark during a lunar eclipse because _____ shadow falls on the moon.
Earth's
What is a body in space that moves in a regular path around the sun?
planet