Interesting and amazing facts about the Sun for kids
The sun, the star in the heart of the Solar System, is the most important source of the survival of our Earth as well as planets orbit around it. The sun gives energy for life on Earth. Its light allows us to grow food and its rays nourish life on our planet. We often see then Sun as the hot big ball. So what’s in its surface, how does it operate, how far is it from the sun to other planets, why did some cultures worship the Sun as a God? Let’s find out the answers for all of those questions through the list of interesting science facts about the Sun. Sun facts for kids.
Sun facts for kids - Science facts
1. The Sun is just one of approximately 100 billion stars in the Milky Way galaxy.
2. It weighs 1,989,100,000,000,000,000,000 billion kilograms. That is roughly the weight of 330,060 Earths.
3. The surface area of the Sun is 11,990 times greater than the Earth’s surface area.
4. Many people believe that there are nine planets orbiting around the Sun in our Solar System including Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. However, there are technically only eight since Pluto is classified as a Dwarf Planet.
5. There are also four other Dwarf Planets kept in orbit by the Sun’s massive gravitational pull including Haumer, Ceres, Makemake, and Eris.
6. The composition of the Sun is about 75% Hydrogen and 25% Helium. Various metals make up less than 0.1% of the Sun’s mass.
7. The Sun is surrounded by a plasma aura called a corona (Latin word for crown). This corona reaches millions of kilometers out into space. It is seen most easily during a total solar eclipse.
8. The Sun’s gigantic mass is accountable for 99.86% of the mass in our Solar System.
9. The surface of the Sun is up to about 5,500 degrees Celsius. This seems chilly compared to the core’s temperature.
The surface of the Sun
10. While it only takes the Sun’s rays less than 10 minutes to travel to the Earth, it may take millions of years for them to travel from the Sun’s core to its surface.
11. The Sun is 24,000 to 26,000 light years away from the galactic centre. It takes the Sun 225 to 250 million years to complete an orbit of the Milky Way’s centre.
12. When all of the Hydrogen in the Sun has burned up, it will continue to burn all the Helium within it for about 130 million years. During this time, it will expand to the point that it will swallow Mercury, Venus, and the Earth. By this point, the Sun will have become a Red Giant.
13. Since the Sun creates energy within its core, the heat from this may cause expansion. Therefore, if it’s not for its enormous gravitational force, the Sun would explode like a giant bomb.
14. The Sun is up to 4.6 billion years old
15.The Sun’s atmosphere is composed of three layers including the photosphere, the chromosphere, and the corona.
The Sun layers
16. Due to its huge influence on Earth, many early cultures saw the Sun as a god or a deity. Ancient Egyptians had a Sun God called Ra while. They viewed the Sun as the giver of life.
17. While the mean distance between the Sun and the Earth Planet is 150 million kilometers, this distance actually fluctuates yearly. This is due to the fact that the Earth moves around the Sun on an elliptical orbit. So the distance between the two varies from 147 to 152 million kilometers. The distance between the Sun and the Planet Earth is known as an Astronomical Unit (AU).
18. While the Earth makes a rotation once every 24 hours, the Sun rotates on its axis once every 25 days at its equator, and once every 36 days at its poles.
The Sun rotation
19. The Sun is classified as a yellow Dwarf Star.
20. The energy emitted from just one square centimeter of the surface of the Sun is enough to burn 64 100-watt light bulbs.
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