The sun provides us with so much and the more we understand the sun the more we are able to advance from our findings. 4) Sun is mainly composed of hydrogen and helium gases. It is the dominant body of the system, constituting more than 99 percent of its entire mass. The sun was like a celestial fireball in the sky. It is an almost perfect sphere of super-hot gases whose gravity holds the solar system together. John Lennon. Its beams were scorching the land and sent the lake a-glitter with golden sparkles. By comparison, Proxima Centauri, the next closest star to Earth, is 250,000 times farther away, and its relative apparent brightness is reduced by the square of that ratio, or 62 billion times. Feedback and revision. David Icke The Sun is a main-sequence G2V star (or Yellow Dwarf). It is about halfway through its lifetime. My teacher says that it is a ball of fire. 6. Plants make their food with the help of sunlight. The sun is held together due to gravitational attraction that produces an intense temperature and pressure at the core. The mass of the Sun, M☉, is 743 times the total mass of all the planets in the solar system and 330,000 times that of Earth. 2) Sun is the source of light and energy to our planet earth. It is a relatively young star, part of a generation known as Population I. All the interesting planetary and interplanetary gravitational phenomena are negligible effects in comparison to the force exerted by the Sun. 5) Sun orbits the solar system at the speed of 820,000 km an hour. The Sun’s surface area is 11,990 times that of the Earth’s. The nuclei of atoms are completely stripped of their electrons, and at this high temperature they collide to produce the nuclear reactions that are responsible for generating the energy vital to life on Earth. When the magnetic fields near sunspots cross, tangle or are reorganised, an explosion of energy can be released. Premium Membership is now 50% off! Sunset on the Inland Sea, with the Seto Great Bridge in the foreground. This worksheet helps your students to learn how important the Sun is to their daily life. Inspirational, Sad, Beautiful. We are able progress in our society and live better lives as we know where to use our resources. The energy produced by the Sun is essential for life on Earth and is a driving force behind the Earth’s weather. The ocean water is now mirroring the colors in the sky. The density at the Sun’s core is about 100 times that of water (roughly six times that at the centre of Earth), but the temperature is at least 15,000,000 K, so the central pressure is at least 10,000 times greater than that at the centre of Earth, which is 3,500 kilobars. When the sun rises it becomes day and when it sets it becomes night. Rest but never quit. The Sun is 109 times wider than the Earth and 330,000 times as massive. Ancient sun worshippers believed the sun died at the end of the winter solstice and then three days later it would be reborn at the start of its cycle - December 25. It has existed for a little over 4.5 billion years. The Sun is the source of an enormous amount of energy, a portion of which provides Earth with the light and heat necessary to support life. Beyond a distance of 5R☉ from the Sun, the corona flows outward at a speed (near Earth) of 400 kilometres per second (km/s); this flow of charged particles is called the solar wind. Author of. The Sun is 109 times wider than the Earth and 330,000 times as massive. Superposed on this stable star, however, is an interesting 11-year cycle of magnetic activity manifested by regions of transient strong magnetic fields called sunspots. Even the sun has a sinking spell each evening. What exactly is a quasar? If we take total mass of whole Solar System, the Sun would be 99.86% of the total.Sun is a ball of hot,burning gases.Sun is the nearest star to the Earth.Sun is the source of all energy for life on Earth. The surface viewed from Earth, called the photosphere, is the layer from which most of the radiation reaches us; the radiation from below is absorbed and reradiated, and the emission from overlying layers drops sharply, by about a factor of six every 200 kilometres (124 miles). The Sun is composed of hydrogen (70%) and Helium (28%). The Sun is the source of an enormous amount of energy, a portion of which provides Earth with the light and heat necessary to support life. Intense solar flares can interfere with radio communications on Earth. How many miles are in a light-year? Sunspots are areas of the Sun’s surface that appear darker than the surrounding areas, this is because they are cooler. It is the dominant body of the system, constituting more than 99 percent of its entire mass. Using Sun Writing Worksheet, students write what they know about the Sun’s properties and its functions. The Sun’s surface area is 11,990 times that of the Earth’s. The radius of the Sun, R☉, is 109 times that of Earth, but its distance from Earth is 215 R☉, so it subtends an angle of only 1/2° in the sky, roughly the same as that of the Moon. The Sun is classified as a G2 V star, with G2 standing for the second hottest stars of the yellow G class—of surface temperature about 5,800 kelvins (K)—and the V representing a main sequence, or dwarf, star, the typical star for this temperature class. The one Christians know as Jesus was actually a symbol for the sun. At sunrise, every soul is born again. The Sun is the source of an enormous amount of energy, a portion of which provides Earth with the light and heat necessary to support life. Professor of Astrophysics, Emeritus; Director and Builder, Big Bear Solar Observatory, California Institute of Technology, Pasadena. For the sun every morning is a beautiful spectacle and yet most of the audience still sleeps. Black Friday Sale! The Sun is the star at the centre of our solar system. Under the force of gravity, the great mass of the Sun presses inward, and to keep the star from collapsing, the central pressure outward must be great enough to support its weight.