Precipitation occurs when water is released from the clouds in any form. Water gets recycled on the Earth as a result of the water cycle where water evaporates, condenses and then falls as precipitation.Know More
The sun heats up the water from oceans, lakes and rivers. The water then evaporates, with the water vapor rising into the air and condensing into water droplets that form clouds. When these water droplets can no longer stay airborne, they fall as rain, sleet, hail or snow.
Much of the precipitation that falls to Earth is in the form of rain. The most rain that ever fell during a year occurred in India in 1861. Arica, Chile, holds the record for not receiving any type of precipitation for 14 years.Learn More
The earth's magnetic field causes a compass to point north, as compasses are powered by magnets. The magnets inside compasses are drawn to the magnetic North Pole, which is about 1,000 miles south of the actual North Pole. Therefore, even though a compass always points north, it does not always point toward the true north.Full Answer >
The Earth is the only planet known to support life. Although larger than the other inner planets, Earth is much smaller than the gas giants found in the outer solar system. Earth is a terrestrial planet with liquid water covering roughly 70 percent of its solid surface.Full Answer >
Oceanographers measure the salinity of ocean water by using a hydrometer, a hydrometer set, a chemical test kit or a salinometer. A hydrometer is a quick test tool used in aquariums, and it works by reading the water density. Higher dissolved salts result in higher density.Full Answer >
Air pressure is caused by the weight of the air pressing down on the Earth, the ocean and the air below. Air pressure is also known as atmospheric pressure and barometric pressure.Full Answer >