This page features a Game Quiz On Sun Facts Online. It is an exercise for students studying science in 3rd, 4th, 5th, 6th to 8th grades. Learn some important facts related to the sun while playing and interactive game. This game works as a test in the classroom and at home. If you want to learn about the sun before playing the game, check the article below.
The Sun is the star at the center of our Solar System. It is a near-perfect ball of hot plasma heated to incandescence by nuclear fusion reactions within its core. This star radiates energy in the form of visible light, ultraviolet light, and infrared radiation. It is the primary source of energy for life on Earth. Several people ask how the sun can produce so much energy. Let's take a closer look.
The Sun is a blazing ball of gases, with a mass of around six trillion tons. This matter is in a state of matter known as plasma, and most of its particles have either an increased or decreased number of electrons. This process results in energy - enough to power a sixty-watt light bulb for more than a hundred years! But how does the sun get all this energy? To answer this question, we need to look at the sun's origins.
The outermost layer is composed of heavier materials. The temperature of this layer is about 6,000 Kelvin. The gas then extends outwards to form the photosphere, the part of the sun visible to Earth. The photosphere's upper region is colder than the lower, which is why the sun appears bright in the center. It's also made up of hydrogen and helium. During nuclear fusion, the sun's core generates a large amount of energy.
The age of the Sun is estimated at 4.6 billion years. It is currently half way through its life cycle and will continue to burn in the same manner for another 4 to 5 billion years. Once it reaches this point, the Sun will enter a phase called the Asymptotic-Giant-Branch. It will then slowly lose heat and eventually collapse into a white dwarf star. In the following billion years, the Sun will begin to cool.
The hydrogen-fueled core of the Sun must be ripped through 100 times faster than the hydrogen fuel in its outer layers. When the hydrogen runs out, it will start searching for helium. Helium will partly rebuild the core and shrink the bloated star. The sun will eventually burn through a tenth of its helium in a flash. That means that the sun won't last as long as expected.
The Sun provides most of the energy we need to support life on Earth. But how do we measure its temperature? Let's examine its components and see what happens when it gets hotter.
The hottest part of the Sun is called the photosphere. It is five times hotter than the hottest lava on Earth. As you go deeper into the Sun's core, the temperature increases. It gets so hot that the corona, the outermost layer of the Sun, is visible during a total solar eclipse. As the temperature of the sun increases, so does the intensity of its radiation.
The sun vitamin D
The sun is one of the primary sources of vitamin D. Exposure to the sun's ultraviolet rays makes this vitamin in our bodies. However, we produce less vitamin D in winter than in summer. This is due to the melanin content in our skin, which protects it from the harmful effects of the sun. Moreover, people living further away from the equator do not get enough vitamin D from the sun.
Vitamin D helps our bodies absorb calcium and strengthens our bones. Insufficient amounts can cause rickets or brittle bones. Vitamin D also boosts our immune system. But if we expose ourselves to the sun too much, we run the risk of developing skin cancer. So, how do we get enough vitamin D from the sun? Here are some tips. Keep your skin covered whenever possible. In addition to vitamin D, the sun can also provide the necessary nutrients for our bodies.
The sun is the closest star to the Earth and is roughly 333,000 times larger than our planet. The mass of the Sun is 1.4 g/cm3 whereas water has a density of one g/cm3. This means that, in the same volume, the Earth would sink. The Sun has a very high density because it is made up mostly of hydrogen and helium, which are the lightest elements in the Universe.
The sun is about 109 times larger than Earth and is 1.4 million times as big as it is in diameter. The temperature of its core is 15 million degrees Celsius (27 million degrees Fahrenheit) and there is a remarkably dense atmosphere. The sun contains about seventy percent hydrogen and twenty-five percent helium, making it the largest star in the solar system. The sun is also 4.6 billion years old.