Shared Flashcard Set

Details

Tides
n/a
12
Science
6th Grade
02/11/2013

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Cards

Term
when the moon's shadow hits the earth or the earth's shadow hits the moon, what occurs?
Definition
eclipse
Term
what are the two types of eclipses?
Definition
solar and lunar
Term
the darkest part of the moon's shadow is called_______
Definition
umbra
Term
what causes a solar eclipse?
Definition
when the moon passes between the earth and the sun, blocking sunlight from hitting the earth.
Term
the larger part of the shadow less dark than the umbra is called_______
Definition
penumbra
Term
what is the arrangement of earth, sun and moon during lunar eclipse?
Definition
occurs at full moon when earth is directly between the moon and the sun
Term
the rise and fall of ocean water is called_____
Definition
tides
Term
what force pulls the moon and earth toward each other?
Definition
gravity
Term
why do tides occur?
Definition
tides are caused by difference in how much the moon's gravity pulls on different parts of earth
Term
what is spring tide?
Definition
the greatest difference between consecutive high and low tides
Term
what is neap tide?
Definition
the lowest difference between consecutive low and high tides
Term
what does consecutive mean?
Definition
in a row or happening one after another
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