Weather changes are due to differences in temperature, moisture content and pressure between the atmospheric air masses that circle the planet. Generally speaking, weather is determined by the current state of the atmosp... More »

Weather is caused by uneven heating on the surface of the Earth, which results in atmospheric change. Differences in temperature are caused by the Sun heating parts of the Earth more than others. Clouds, rain and winds a... More »

Weather differs every day due to changes in heat, wind and moisture. The revolution of Earth around the sun is the primary reason for seasonal changes. More »

Monsoons are formed when the sun heats the atmosphere and causes variations in temperature between the oceans and land masses. At certain times of year, land heats faster than water in the oceans, and warmer air rises. M... More »

Changes in weather are the result of air masses of different temperatures and pressures reacting, influenced by the terrain. Two main types of weather systems exist: high pressure and low pressure. High-pressure systems ... More » Science Weather & Tides

Seasons on Earth change in response to the regular change in the planet's axial tilt relative to the Sun. Earth is inclined at a 23-degree angle, and as a result it points first one, then the other, hemisphere toward the... More »

The weather during the season of spring varies depending on location, but it is usually marked by an increase in temperature and rain. In areas that receive snow during winter, the snow begins to melt. This can lead to f... More »