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unit 4
| Question | Answer |
|---|---|
| rotation | the movement of an object that leaves at least one point |
| day | A day is the time period of a full rotation of the Earth with respect to the Sun |
| revolution | a period of drastic change in scientific thought |
| year | the time required for the Earth to orbit once around the sun |
| season | a division of the year that is characterized by recurring weather conditions, and determined by both Earth’s tilt relative to the sun and Earth’s position in its orbit around the sun |
| equinox | the moment when the sun appears to cross the celestial equator |
| solstice | the point at which the sun is as far north or as far south of the equator as possible |
| satellite | a natural or artificial body that revolves around a planet |
| gravity | a force of attraction between objects that is due to their masses |
| lunar phases | the different appearances of the moon from Earth throughout the month |
| eclipse | an event in which the shadow of one celestial body falls on another |
| umbra | a shadow that blocks sunlight, such as the conical section in the shadow of the Earth or the moon |
| penumbra | the outer part of a shadow such as the shadow cast by Earth or the moon in which sunlight is only partially blocked |
| tide | the periodic rise and fall of the water level in the oceans and other large bodies of water |
| tidal range | the difference in levels of ocean water at high tide and low tide |
| spring tide | a tide of increased range that occurs two times a month, at the new and full moons |
Created by:
davi vasques