Card Set Information
Sun Earth Moon
The earth spins on its axis once every 24 hours.
This is called a solar day.
the moon spins on its axis once every 29.5 days,or one lunar day
this is called a month
states that every object in the universe attracts every other object
the law of universal gravitation
the___________________ the mass of an object has an even greater gravitational pull of that object
gravitational pull also________as the distance between two objects decreases
Keeps the earth from being pulled to thr sun or hurled through space
gravity and inertia
the moon is
of earths gravity
pulls on objects towards the earths center
the tendancy of matter to stay at rest unless affected by outside force
is caused by the tilt of the earth as it rotates on its axis and revovles around the sun
change in seasons
the earth is tilted at how many degrees on its axis
is winter in the northeren hemisphere and summer hemisphere in the southeren hemisphere
Occurs when neither side of earth's poles is close to the sun.
As the moon revolves around earth and rotates on it's axis, we see portions of the?
moon appears to grow
moon appears to shrink
the moon rotates________ as it revolves around the earth
we see less than half but not all of the moons sunlit side
we see more than half but not all moons sunlightside
the moon always faces earth while most of its faces away from the earth
what occurs when the earth blocks out the sun's light from the full moon ? SEM =Sun , Earth , and Moon .
occurs when the moon passes directly between the sun and earth during a new moon phase.
A Solar eclipse
the periodic rising and falling of the surface level of ocean water
high tides occur on __________________ of the earth at a time and low tides does the same
In about a 25 hour cycle, most locations on Earth experience how many tides?
two high tides and two low tides.
—a condition of the greatest difference between low and high tides
—a condition of the least difference between low and high tides
a dark,flat area on the moon's surface filled with hardened lava
who was the first person to land on the moon?
a lightly colored high peak on the moon is a mountain called a
does not appear to rise at the same time everyday