| A | B |
|---|
| Axis | An imaginary straight line from the North Pole, through Earth's center, to the South Pole |
| Equator | The imaginary line that circles the middle of the Earth |
| Northern Hemisphere | The half of the Earth above the equator |
| Southern Hemisphere | The half of the Earth below the equator |
| Climate | The average weather conditions for an area, over a long period of time |
| Tropical Climate | A hot, rainy climate |
| Temperate Climate | A climate that generally has warm, dry summers and cold, wet winters |
| Polar Climate | A very cold climate that does not receive much energy from the Sun |
| Oceans and Mountains | Effect the climate in an area |
| Tree Rings, Ice Cores, Fossils | Give clues as to how Earth's climate has changed over long periods of time |
| Ice Ages | Cold periods of time when ice sheets covered large areas of the world |
