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Earth Science Earth Motion Test
Terms in this set (67)
Earth spins on its ________________.
It takes about _______________ for Earth to rotate one time.
A term that is used to describe Earth's orbit around the sun is Earth's _______________.
The _____________ of Earth's rotation axis stays the same as Earth orbits the sun.
For one half of the year, the north end of Earth's rotation leans toward ________________.
The sun appears to move ______________ to _______________ across the sky.
_______________ makes the sun appear to move across the sky.
Earth spins in a _________________ direction.
The moon and stars seem to move from ______________ to _______________ across the night sky.
As Earth moves around the Sun, the ________________ change.
The shape of Earth's orbit is nearly _____________.
Earth moves around the sun because the sun's _________________ pulls the Earth.
When it's daytime on the half of Earth facing the Sun, it is _____________ on the other half.
Earth would fly into space in a straight line if the _______________between Earth and the Sun ended.
Earth's ________________ is an imaginary line on which it rotates.
Earth's rotation axis is _______________.
Unlike the sun, the moon does not emit its own.
The moon seems to shine because it ________ light from the sun.
Scientist hypothesize that the __________ formed from rock that was in a ring around earth. This ring forms when ________ collided with an object about the size of mars
Crater form when objects ___________ into the surface of another object
Light colored streaks are called ___________________ extend in all directions from some craters.
On Earth, water, or plate tectonics have erased craters. The _____________ has no wind, water, or plate tectonics.
Large, flat areas on the moon are called _________________. They formed after most impacts on the Moon's surface had stopped; lava flowed up through the Moon's crust and solidified, covering many craters and other features and then solidifying.
____________________ are light colored areas on the Moons surface
The same as, 27.3
The amount of time it takes the Moon to revolve once around the Earth is the ____________ the amount of time it takes the Moon to make one rotation. One revolution of the Moon around the Earth takes _________ days.
The ______________ side of the Moon always faces Earth. The _________ side of the moon cannot be seen from Earth.
A _________________ is the lit part of the Moon or a planet that can be seen from Earth.
Phases of the Moon change because of the ___________ of the Moon around the Earth,.
A __________________ the sequence of moon phases takes 29.5 days to complete
Suns, nuclear fusion,
The __________________________ diameter is more than 100 times greater than the Earths diameter. In the Sun, atoms combine during ________________ producing huge amounts of energy. Some of the Sun's energy reaches Earth as Thermal energy and ___________
, orbit, year, gravity
____________________________ is the movement of one object around another object follows is its __________________. It takes approximately one ___________________ for the Earth to make one revolution around the Sun. Earth moves around the Sun because of the pull of __________________ between the Earth and the Sun
The force of gravity between two objects depends on the _________ of the objects and how far apart they are.
rotation, rotation axis, counter clockwise, east
The ______________ of an object is its spinning motion. The line around which an object rotates is the ________________. Looking at Earth from above the North Pole, Earth rotates in a(n) _____________________ direction from west to east. Earths Rotation makes the Sun appear to rise in the _____________________.
It takes one __________ for the earth to complete one rotation.
Earth's rotation axis is always _________________ in the same direction.
The Sun shines on the part of Earth that ________________ the Sun.
When light shines on a tilted surface, the light is more __________________ than it would be on a surface that is not tilted.
Because of the tilt of Earth's axis, Earth's surface becomes more tilted as you move away from the ___________.
As a result of this tilt, regions of Earth near the ___________________ receive less energy than regions near the ___________________
Earth's ________________ change in a yearly cycle because of the tilt of its rotation axis and Earth's _______________ around the Sun.
axis, Summer, Northern, Winter, Northern
The end of Earth's ___________________ that is tilted toward the Sun receives more energy from the Sun. The part of Earth tilted toward the Sun experiences seasons of Spring and ___________________. If the northern end of Earth's axis leans toward the Sun, its spring or summer in the ___________________ hemisphere. The part of Earth tilted away from the Sun experiences seasons of autumn and ________________ if the southern end of Earth's axis leans toward the Sun, its is fall or Winter in the _____________________ hemisphere.
Solstices, four days, Summer, Southern
During a(n) _____________________, Earth's rotation axis is the most toward or away from the Sun. Solstices occur_________________ each year. The June solstice is the first day of ______________________ in the norther hemisphere. On the December solstice, the _________________ end the Earths rotation axis leans the most away from the Sun.
During its revolution, Earth's axis does not lean toward or away from the Sun during a(n) _____________________. The September equinox marks the first day of ___________________ in the southern hemisphere. The March equinox marks the first day of _________________ in the northern hemisphere.
The Suns apparent path through the sky in the northern hemisphere is ___________________ near the June solstice and _________________________ near the December solstice.
When one object blocks light from another object, a ___________ results.
light from a ___________ source forms a shadow is called an umbra
The darker part of a central shadow is called the ____________.
The lighter part of a shadow is called the _______________.
In the penumbra, light is _______________ blocked.
In the umbra, light is ____________ blocked.
When the moon passes between Earth and the sun, it casts a shadow on ______________.
During a ________________, the Moon's shadow passes over Earth's surface.
A solar eclipse can only occur during a ______________.
If you are in the umbra of the Moon's shadow, you see a ____________ solar eclipse. The moon appears to _______________ cover the sun.
If you're in the penumbra of a moon's shadow, you see a _____________ solar eclipse.
Lunar eclipse, Full
During a ________________, Earth's casts a shadow on the moon. it can only occur during the ____________ moon phase,
When the entire moon passes through Earth's _____________________, a total lunar eclipse occurs.
when only part of the moon passes through the ___________ of Earth's shadow, a partial lunar eclipse occurs.
You do not see a lunar eclipse every month because the moon's orbit is slightly ______________ compared to Earth's orbit.
The daily rise and fall of see level is called a _______________.
The main cause of tides is the gravitatioal pull of the _____________ on Earth.
A ____________occurs on the side of Earth that is closer and on the opposite side of Earth.
____________ tides occur along tidal bulges.
___________ tides occur between tidal bulges.
The __________ also effects tides, but not as much as the moon.
During a_________ tide, Earth, the Sun, and the moon are positioned in a straight line. At this time, high tides are __________ than usual low tides are ____________.
During a ____________ tide, Earth, the Sun, and the Moon form a right angel. At this time, high tides are ______________ than usual, and low tides are ____________.
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