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Science Chapter 20!
| Question | Answer |
|---|---|
| unlike the Sun, the Moon does not emit its own ____. | light |
| the Moon seems to shine because it _____ light from the Sun. | reflects |
| The _____ diameter is more than 100 times greater than Earths diameter | Sun |
| In the Sun, atoms combine during ___________, producing huge amounts of energy | nuclear fusion |
| Some of the Suns energy reaches Earth as thermal energy and _____ | light |
| ________ is the movement of one object around another object | revolution |
| The path a revolving object follows is its ______ | orbit |
| It takes approximately one _______ for Earth to make one revolution around the Sun | year |
| Earth moves around the Sun because of the pull of _________ between Earth and Sun | gravity |
| The force of gravity between two objects depends on the ________ of the objects and how far apart they are | mass |
| The ______ of an object is its spinning motion | rotation |
| The line around which an object rotates is the the __________ | rotation axis |
| Looking at Earth from above the North Pole, Earth rotates in a _______________ direction from west to east. | counterclockwise |
| Earths rotation makes the Sun appear to rise in the _____ | east |
| It takes one ___ for Earth to complete one rotation | day |
| Earths rotation axis is always _________ in the same direction | tilted |
| The Sun shines on the part of Earth that ______ the Sun | faces |
| When light shines on a tilted surface, the light is more ____________ than it would be on a surface that is not tilted | spread out |
| Because of the tilt of Earths axis, Earths surface becomes more tilted as you move away from the __________ | equator |
| As a result of this tilt, regions of Earth near the _________ receive less energy than regions near the _________ | poles, equator |
| Earths _______ change in a yearly cycle because of the tilt of its rotation axis and Earths _______ around the Sun | Seasons, motion |
| The end of Earths ____ that is tilted toward the Sun receives more energy from the Sun | axis |
| The part of Earth tilted toward the Sun experiences seasons of spring and ________. If the northern end of Earths axis leans toward the Sun, it is spring or summer in the ______________ hemisphere | Summer, northern |
| The part of Earth tilted away from the Sun experiences seasons of autumn and _______. If the southern end of Earths axis leans toward the Sun, it is fall or winter in the ____________ hemisphere | Winter, northern |
| During a ________, Earths rotation axis is the most toward or away from the Sun | solstice |
| Solstices occur ______ each year | twice |
| The June solstice is the first day of _________ in the northern hemisphere | summer |
| On the December solstice, the ______ end of Earths rotation axis leans the most away from the Sun | north |
| During its revolution, Earths axis does not lean toward or away from the Sun during an __________ | equinox |
| The September equinox marks the first day of ________ in the southern hemisphere | spring |
| The March equinox marks the first day of _______ in the northern hemisphere | spring |
| The Suns apparent path through the sky in the northern hemisphere is ________ near the June solstice and __________ near the December solstice | highest,lowest |
| Scientists hypothesize that ______ formed from rock that was a ring around Earth. This ring formed when _______ collided with an object about the size of Mars. | Luna, Earth |
| Craters from when objects ________ into the surface of another object | crash |
| Light-colored streaks called _____ extend in all directions from some craters | rays |
| On Earth, wind, water, and plate tectonics have erased craters. The ______ has no wind, water, or plate tectonics | moon |
| Large, flat areas on the Moon are called _______. They formed after most impacts on the Moons surfaces had stopped;lava flowed up through the Moons crust and solidifying, covering many craters and other features and than solidifying | Maria |
| ___________ are light- colored areas on the Moons surface | highlands |
| The amount of time it takes the Moon to revolve once around Earth is _________ the amount of time it takes the Moon to make one rotation. One revolution of the Moon around Earth takes ________ days | the same, 27.3 |
| The ____ side of the Moon always faces Earth. The ______ side of the Moon cannot be seen from Earth | near, far |
| A ______ is the lit part of the Moon or a planet that can be seen from Earth. | phase |
| Phases of the Moon change because of the _______ of the Moon around Earth | motion |
| A __________ -the sequence of moon phase- takes 29.5 days to complete | lunar cycle |
| More of the Moons near side is lit each night during the ____________ | waxing phase |
| After the first week of the lunar cycle, the Moon entire _______ half is lit | western |
| After first week of the lunar cycle there is the ___________ phase | first quarter |
| During the second week of the lunar cycle, when the Moons near side is completely lit, it is at the ______ moon phase | Full |
| Less of the Moons near side is lit each night during the ___________ | waning phase |
| During the third week of the lunar cycle, only the ________ half of the Moon is lit | eastern |
| During the third week of lunar cycle there is the _____________ phase | third quarter |
| At the end of the lunar cycle, you cannot see any of the lit side of the Moon, which is called the _______ moon phase | new |
| kenny please stop being rude and mooching off are study stack !! | we are telling mr moser |
Created by:
brookemj1