| Term | Definition |
| Troposphere | Rain, snow, storms and most clouds occur in this layer |
| Troposphere | The layer of the atmosphere that we live in. |
| Stratosphere | The ozone layer that absorbs ultraviolet radiation |
| Mesosphere | Most meteoroids burn in this layer of the atmsophere |
| Thermosphere | Above 80 km and extends to space, it has no definite outer limit. |
| Ionosphere | Reflects radio waves back to Earth. |
| Ionosphere | The layer of Earth's atmsophere that the aurora borealis occurs in. |
| Exosphere | PHone calls and tv pictures reach us by way of communications in this layer of the atmosphere. |
| Van Allen Belt | AKA the magnetosphere |
| Van Allen Belt | Protects living things from cosmic and solar radiation |
| Van Allen Belt | Composed of protons and electrons from the Sun. |
| Stratosphere | Air planes travel in this layer |
| Troposphere | Conditions affecting Earth's weather occur here. |
| Stratosphere | Protections from severe burning from sunlight occurs here. |
| Mesosphere | Shooting stars known as meteors burn up in this layer. |
| Heterosphere | Thermosphere, Ionosphere, Exosphere, Van Allen Belt |
| Homosphere | Troposphere, Stratosphere, Mesosphere |