| A | B |
|---|
| atmosphere | the air surrounding the Earth |
| radiation | energy trasferred by waves or rays |
| conduction | the transfer of energy that occurs when molecules bump into each other |
| full moon | the phase that occurs when all of the Moon's surface facing Earth reflects light |
| Coriolis effect | the redirection of wind and water above and below the equator due to Earth's rotation around the sun |
| land breeze | the movement of air from land to sea at night |
| ellipse | the path the Earth takes around the Sun |
| convection | the transfer of energy by the flow of material |
| ionosphere | the layer of electrically charged particles |
| jet stream | the narrow belt of strong winds that blows near the top of the troposphere |
| density current | a current than causes more dense water to sink |
| light year | the distance light travels in one year |
| lunar eclipse | occurs when Earth's shadow falls on the Moon |
| maria | the dark, flat regions on the Moon which are craters filled with lava |
| moon phase | a change in the appearance of the Moon as viewed from Earth |
| Neap tide | the tide that occurs when the Sun, Moon, and Earth form a 90 degree angle |
| new moon | the moon phase when the moon is between Earth and the Sun |
| ozone layer | the layer which protects Earth from ultraviolet radiation |
| parallax | the apparent shift in the position of an object when viewed from two different positions |
| axis | the imaginary vertical line that cuts through the center of the Earth |
| revolution | Earth's yearlong elliptical orbit around the Sun |
| rotation | the spinning of Earth on its imaginary axis |
| sea breeze | the movement of air from sea to land during the day |
| solar eclipse | occurs when the moon casts a shadow over part of the Earth |
| sphere | a round, three-dimensional object |
| spring tide | the tide that occurs when the Earth, Sun, and moon are in a straight line |
| surface current | wind powered current |
| tidal range | the difference between the level of the ocean at high tide and low tide |
| tide | the daily rise and fall in sea level |
| troposphere | the layer of the Earth's atmosphere closest to the ground |
| upwelling | circulation that brings deep, cold water to the ocean's surface |
| waning | the appearance that the lighted side of the moon grows smaller |
| waxing | the appearance that the lighted side of the moon grows larger |
