| A | B |
|---|
| What is the Geosphere? | Solid part of the earth, includes rocks, soil & sediments |
| What is the Atmosphere? | the mixture of gases that make up the air |
| What is the Hydrosphere? | All the water on or near the earth's surface |
| What is the Biosphere? | the part of the earth where life exists |
| What are the 3 main layers of the geosphere? | The crust, mantle, and core |
| How much of the earth's mass is comprised by the crust? | Less than 1 percent, made almost entirely of light elements |
| How much of the earth's mass is made up by the mantle? | 64% of the earth, made of medium density elements |
| What is another name for the crust? | The lithosphere, which is the top portion of the mantle |
| What is the term for the removal & transport of surface materials? | Erosion |
| What percent of the atmosphere is Nitrogen? | 78% |
| What percent of the atmosphere is Oxygen? | 21% |
| What is the greenhouse effect? | The process in which gases trap heat near the earth |
| What are greenhouse gases comprised of? | water vapor, carbon dioxide, methane, & nitrous oxide |
| What is the water cycle? | The continuous movement of water into the air, on to land, & back to water sources |
| What is evaporation? | the process by which liquid water is heated & rises into the atmosphere as water vapor |
| What is condensation? | the process of water vapor forming water droplets on dust particles |
| What is precipitation? | the process of the water droplets falling from the clouds as rain, sleet, snow, or hail |
