| A | B |
|---|
| Earth's air, which is made up of a thin layer of gases, solids, and liquids; forms a protective layer around the planet and is divided into five distinct layers | Atmosphere |
| Layer of Earth's atmosphere that is closest to the ground, contains 99 percent of the water vapor and 75 percent of the atmospheric gases, and is where clouds and weather occur | Troposphere |
| Layer of electrically charged particles in the thermosphere that absorbs AM radio waves during the day and reflects them back at night | Ionosphere |
| Layer of the stratosphere with a high concentration of ozone; absorbs most of the Sun's harmful ultraviolet radiation | Ozone layer |
| A group of chemical compounds used in refrigerators, air conditioners, foam packaging, and aerosol sprays that may enter the atmosphere and destroy ozone | Chlorofluorocarbon |
| Energy transferred by waves or rays | Radiation |
| Transfer of energy that occurs when molecules bump into each other | Conduction |
| Transfer of heat by the flow of material | Convection |
| All the water on Earth's surface | Hydrosphere |
| Process in which water vapor changes to a liquid | Condensation |
| Causes moving air and water to turn into the southern hemisphere and turn right in the northern hemisphere due to Earth's rotation | Coriolis effect |
| Narrow belt of strong winds that blows near the top of the troposphere | Jet stream |
| Movement of air from sea to land during the day when cooler air from above the water moves over the land, forcing the heated, less dense air above the land to rise | Sea breeze |
| Movement of air from land to sea at night, created when cooler, denser air from the land forces up warmer air over the sea | Land breeze |
