---------------------------------------------------------------------------------------------------------------------------------Name __________________________
Date _____________
Class ___________
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Space – Earth, Sun, and Moon
Earth’s Seasons and Days
_____________________ is the study of the moon, stars and other objects in space. ________________ is
the imaginary line that passes through Earth’s center and the North and South poles. __________________
is the Earth spinning on its axis. As Earth rotates
______________________, the sun appears to move
___________________ across the sky creating our
Sunrise and Sunset. The Earth completes one
___________________ on its axis during a 24 hour
period. As Earth rotates eastward, a location moves
through sunrise (shadow), day (sunlight), sunset
(shadow), and night (darkness) creating our days and nights. __________________ is the movement of one
object around another object. One complete revolution around the sun is called a _______________.
Earth’s _______________ as it travels around the sun is not quite a circle, but rather a slightly ___________
____________. Earth’s orbit around the sun takes _________________ days. After four years Earth’s
calendar is one day ahead, so an extra day is added creating a ____________ year. A
________________________ is two days each year
when the noon sun is overhead at either 23.5ºsouth or
23.5 º north. A _____________________ is the two days
of the year on which neither hemisphere is tilted toward
or away from the sun. Earth has seasons because its axis
is __________________ as it moves around the sun.
Depending on how much ________________ sunlight
that our location receives at a particular time causes
seasons.
Moon Phases
The different shapes of the moon you see from Earth are called __________________. The moon goes
through its whole set of phases each time it ______________________ around Earth, or about once a
________________. The phases of the moon are caused by the change of the ______________________
_________________ of Earth, the moon, and sun. The phase of the moon you see depends on how much of
the sunlit side of the moon faces Earth. In a rare
occasion when the moon or Earth becomes directly
between the sun and the other and cast a shadow on that
object is called an _________________________. A
_______________ __________________ occurs when
the moon comes directly between the sun and Earth. A
_______________ __________________ occurs when
Earth comes directly between the sun and moon.
Moon and Tides
The moon is 3,476 kilometers in diameter, a little less
than the distance across the _________________ _________________. The moon only contains ________
as much mass as Earth. The theory that describes how our moon formed is known as the
___________________ theory. In 1609, the Italian astronomer ________________ _________________
made a telescope by putting two lenses in a wooden tube. Through this telescope, Galileo noticed
_______________ on the moon. Fifty years ago, scientists concluded that the craters on the moon were
caused by the impacts of ______________________, rocks from space.
On July 20, 1969 Apollo 11 astronauts _______________
____________________and ______________ _________________
launched a lunar module called ______________, leaving Mike Collins
in orbit in the Command Module. The Earth’s high and low tide are a
result of the moon’s ___________________ pulling on the Earth’s
oceans. The magnitude of gravity depends on two factors:
_______________________________ and __________________________________________________.
One high tide forms when the moon pulls on the waters
near it. Another high tide forms on the
_________________ _______________ as the solid Earth
is pulled toward the moon, leaving the waters behind.