| A | B |
|---|
| Season | One of the four quarters into which a year is commonly divided. |
| Summer | The season between spring and autumn comprising in the northern hemisphere usually the months of June, July, and August or as reckoned astronomically extending from the June solstice to the September equinox. |
| Autumn | The season between summer and winter comprising in the northern hemisphere usually the months of September, October, and November or as reckoned astronomically extending from the September equinox to the December solstice. |
| Winter | The season between autumn and spring comprising in the northern hemisphere usually the months of December, January, and February or as reckoned astronomically extending from the December solstice to the March equinox. |
| Spring | The season between winter and summer comprising in the northern hemisphere usually the months of March, April, and May or as reckoned astronomically extending from the March equinox to the June solstice. |
| Equinox | Either of the two times each year when the sun's center crosses the equator and day and night (as on March 21 and September 23) are everywhere of equal length. |
| Solstice | The time of the year when the sun is farthest north (summer solstice, about June 22) or south (winter solstice, about December 22) of the equator. |
| Rain | Water falling in drops from the clouds. |
| Snow | Small white crystals of ice formed directly from the water vapor of the air. |
| Drought | A long period of dry weather. |
| Temperature | Degree of hotness or coldness as shown by a thermometer. |
| Thermometer | An instrument for measuring temperature commonly in the form of a glass tube with mercury or alcohol sealed within and with a scale marked in degrees on the outside. |
| Tornado | A violent whirling wind accompanied by a funnel-shaped cloud that moves overland in a narrow path. |
| Blizzard | A driving storm of wind and snow. |
| Storm | A heavy fall of rain, snow, or sleet with much wind. |
| Sleet | Partly frozen rain: a mixture of rain and snow. |
| Earth | The planet that we live on. |
| Axis | A straight line about which a body or a geometric figure rotates or may be supposed to rotate. |
| Equator | An imaginary circle around the earth everywhere equally distant from the north pole and the south pole. |
| Hemisphere | One of the halves of the earth as divided by the equator into northern and southern parts (northern hemisphere, southern hemisphere) or by a meridian into two parts so that one half (eastern hemisphere) to the east of the Atlantic ocean includes Europe, Asia, and Africa and the half (western hemisphere) to the west includes North and South America and surrounding waters. |
