| A | B |
|---|
| RADIATION | The direct transfer of energy through empty space by electromagnetic waves. |
| GREENHOUSE EFFECT | The process by which heat is trapped in the atmosphere by water vapor, carbon dioxide, methane, and other gases that form a "blanket" around Earth. |
| THERMAL ENERGY | The energy of motion in the molecules of a substance. |
| TEMPERATURE | The average amount of energy of motion in the molecule of a substance. |
| THERMOMETER | An instrument used to measure temperature, consisting of a thin, glass tube with a bulb on one end that contains a liquid (usually mercury or alcohol). |
| HEAT | The energy transferred from a hotter object to a cooler one. |
| CONDUCTION | The transfer of heat from one substance to another by direct contact of particles of matter. |
| CONVECTION | The transfer of heat by movements of a fluid. |
| WIND | The horizontal movement of air from an area of high pressure to an area of lower pressure. |
| ANEMOMETER | An instrument used to measure wind speed. |
| WIND-CHILL FACTOR | Increased cooling caused by the wind. |
| LOCAL WIND | Winds that blow over short distances. |
| SEA BREEZE | The flow of air from an ocean or lake to the land. |
| LAND BREEZE | The flow of air from land to a body of water. |
| GLOBAL WINDS | Winds that blow steadily from specific directions over long distances. |
| CORIOLIS EFFECT | The way Earth's rotation makes winds in the Northern Hemisphere curve to the right and winds in the Southern Hemisphere curve to the left. |
| JET STREAM | Bands of high-speed winds about 20 kilometers above Earth's surface. |
