When we look at the sky from our earth, we can see the sun, the moon and lots of twinkling stars. Our Solar System is made up of eight planets, their moons, and our sun. The planets and their moons move around the sun. The path of planets around the sun is known as orbit. The orbits are not round.
Thus, for snow to form in the atmosphere, we need: -water present during the vapor phase -relative humidity = 100% (saturation of the air by water ) -air temperature below 0°C -nucleating agents (or nuclei) The nucleating agents are particles ( such as dust...) which allow the condensation of vapor in order to form water or ice particles.This phenomenon is called "Nucleation". It is what happens in clouds. It is thecoalescence of small droplets into larger drops, through the collision of small droplets with each other or with larger drops, that gives rise to precipitable raindrops that are large enough to overcome gravity and fall to the ground as rain. For snow, because of the temperature, there is a phenomenon of sublimation. It means that ice particles turn into snow crystals.
Speculate on the distribution of climate and weather should the earth’s axis lie in the plane of the ecliptic, and be “fixed” (always to a point) on a given star outside the solar system. The earth will continue on its axis. Complete weather climate chaos. The arctic and Antarctic would go through 6 months of darkness and 6 months of light. While in the light it would become very hot – hundreds of degrees.
Plucking is when a glacier freezes onto a rock and pulls it away from the land as it moves. Abrasion is when the rocks (and other materials) that have been previously plucked by the glacier are carried by the glacier and is then rubbed against the sides and floor of the valley, like sandpaper. And finally, freeze-thaw weathering occurs in rocks that have many cracks and joints in them, and where temperatures are usually around freezing point. Water (from beneath the glacier), called melt water, gets into the small cracks in the day, and freezes and expands in the night. This puts pressure on the crack, and expands it wider.
Solar System D. Caicedo MDC Assignment 1: The Solar System The solar system consists of the Sun; the nine planets, 67 satellites of the planets and a large number of small bodies (comets and asteroids). The inner solar system contains the Sun, Mercury, Venus, Earth and Mars: The planets of the outer solar system are Jupiter, Saturn, Uranus, Neptune and Pluto: The orbits of the planets are ellipses with the Sun at one focus, though all except Mercury and Pluto are very nearly circular. The orbits of the planets are all more or less in the same plane (called the ecliptic and defined by the plane of the Earth's orbit). The ecliptic is inclined only 7 degrees from the plane of the Sun's equator. Pluto's orbit deviates the most from the plane of the ecliptic with an inclination of 17 degrees.
The air rises, then spreads horizontally to the north and south. Eventually the now cool air sinks and flows along the surface to replace the rising air at the equator, forming a circulation cell or a Hadley cell. It tends to sink at about 30° north and 30° south latitude. As the air sinks it warms and dries. Not only can sinking air not produce rain, but when it reaches the ground it absorbs water from the soil and vegetation, creating even more arid conditions.
The origin of meteorites has been linked to the moon, and Mars, while the rest of the “meteors” are believed to be fragments originating from asteroids, comets, and other planetary debris. (Hamilton, 2009) Comets are composed of ice and dirt that gets stripped away from the nucleus by solar winds as the comet nears the sun. This causes the comet to form a tail that
In the ocean there are many types of motion. One type of motion is tides. Tides are the systematic rise and fall of ocean water caused by the moon. The sun and moon pull on the earth and the water. The moon pulls most of the water nearest to it creating a high tide.
The black holes gobble up the stars. The planets that revolve around the stars undergo certain changes in their cosmic position as well as in their internal structure all the time. The revolution of the earth along its axis brings day and night alternatively in the two hemispheres of the earth. When it is day there is brightness and all-around activity; when there is night, there is darkness, comparative quietness and the time to sleep. The revolving of the earth around the sun, brings change of seasons.
While moving through space these objects are known as meteoroids. The bright streaks that they produce while moving through Earth’s atmosphere are known as meteors. The term meteorite is also used for a meteoroid that has landed on the surface of a celestial body other than Earth. There are three main types of meteorites. The most abundant are stone meteorites which are primarily made up of silicate minerals such as olivine, pyroxene, and feldspar.