| A | B |
| Word that means the same as insolation | Radiation |
| what happens to most of the sun's radiant energy | Travels into deep space |
| Two forms of heat flow that carry energy from inside the sun to Earth | Convection and Radiation |
| what is lost as energy is created in nuclear reactions | A small amount of matter |
| ground cover that absorbs the most insolation | Forests |
| what happens to most of the energy when Earth's surface absorbs light | becomes heat energy, warms the surface |
| name applied to bending sunlight downward within the atmosphere | Refraction |
| the gaseous envelope of a celestial body | Atmosphere |
| the whole mass of air surrounding the earth | Atmosphere |
| photosynthetic organisms that removed CO2 from atmosphere | Cyanobacteria |
| composition of today's atmosphere | Nitrogen, oxygen, argon, greenhouse gases |
| levels of atmosphere | Troposphere, stratosphere, mesosphere, thermosphere |
| source of all energy in atmosphere | Sun |
| where some energy escapes after Earth receives energy | Space |
| radiant energy that reaches Earth | Radiation |
| waves that are transferred through radiation | Electromagnetic Waves |
| the transfer of energy from an object with a higher temperature | Heat |
| the transfer of heat that occurs when molecules bump into one another and is transferred through direct contact | Conduction |
| the transfer of energy through density differences in the air | Convection |