The Universe is everything we can touch, feel, sense, measure or detect. 3. Universe consists, constellation, in which Sun exists, is so big that from the core of constellation, light takes around 27 thousand years to reach up to sun. Nucleus of Halley’s Comet is 16 x 8 x 8 kilometers and it is the darkest object in solar system. The atmosphere of Titan is thicker than that of Earth. When we look at the sky, we see different kinds of natural bodies like the sun, the stars, the moon, and so on. Sun’s light is very strong so, we should avoid looking at the sun directly as it could damage our eyes. The atmosphere of Saturn is mainly composed of This comet is periodical one and may be sighted at specific intervals but all the comets are not periodical. The rotation of sun was observed by Galileo first of all. The water bodies cover 70 percent of the Earth. That is why it is called ‘Veiled planet’ also. Sun –Star of the Solar System • It ‘s the heaviest among solar system • It is a ball of hot ,burning gases. Download Our Universe worksheet for class 5 CBSE Printable Worksheets with solution. Moon is natural satellite of our Earth. Earth is only planet where life exists. Temperature of sun is 50 lakh degrees Kelvin (one Kelvin is equal to one degree on Celsius scale). Our earth is a part of solar system, which is a part of the Milky way galaxy. Once you end the test or the test duration gets completed, you will not be able to edit any of the answers. This tail is also lakhs of kilometer long. No one knows the exact size of the Universe, because we cannot see the edge – if there is one. It is presumed that this crust reduced due to some comet accident. This hottest planet is second most glittering celestial body, first being the Moon. All we do know is that the visible Universe is at least 93 billion light years across. Outer planets are beyond asteroids and are constituted of gases, popularly known as Gas Giants. Chapter Introduction The Universe has not always been the same size. This is seventh planet of our Solar System and third largest planet. Top 50 Questions About Universe and Universe History: In this post you can read 50 questions answers about Universe many factors like; Planet, Satellite, Asteroid, Black hole, Galaxy, Nebula, Solar-System, Star formation, Space and Space Missions, Universe History and recent activities & launches in astronomical science world those are most important and also very useful for any … Help students understand the solar system, including the universe, gravity and inertia, and the planets, … It does not have atmosphere of its own and is engulfed by blasts taking place because of Sun. Satellites are actually celestial objects that revolve around some other celestial object. These are too smaller than planets of Solar System but bigger than Asteroids. Mars is a cold planet which has thin atmosphere. It is because of this angle of inclination of 23 ½ degrees that we have the four seasons. Get Our Universe, General Science Chapter Notes, Questions & Answers, Video Lessons, Practice Test and more for CBSE Class 10 at TopperLearning. As far its rotation on axis is concerned, it has similarity with Earth and it supports various seasons also. Moon on 21st July 1969. According to International Astronomical Union (IAU) biggest among Inner planets, Earth is only planet which has Geological activity taking place in its core. Mars is only planet other than Earth which has ice-caps on its poles which have been named as Planum Boreum (North Pole) and Planum Australe (South Pole) or Southern Cap. our planet - earth by : abha arora Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Terms of Service 7. The planets do not have any light of their own but these illuminate by reflecting sunlight and are visible at night. The sun looks yellow from earth. Many layers of clouds are found on Uranus. Galileo founded Mercury in 1631 which has no satellite. • Sun. Normally looking pale, this spherical ball of fire has 13 lakh multiples more volume than that of Earth and 3.25 lakh times more weight. The Earth is the third planet from the sun and it is the fifth largest planet in the solar system. Their study has concluded that meteors are made of metals like iron, nickel, aluminium, oxygen and tin. But it is smaller than Uranus and its surface is more condense. • Pole Star. Home > Class 2 Science Our Universe. The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions. They can repeat the lessons as many times as required. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Sun rotates round its axis from West to East. One rotation of sun takes 25 days (of Earth) if observed from the equator while if we observe it from its poles, each rotation of sun takes 36 days. These are; Jupiter, Saturn, Uranus and Neptune. Constituted of gases, Uranus has coldest atmosphere as compared to all the planets and has an average temperature of 223°C. Before the birth of the Universe, time, space and matter did not exist. Biggest such museum in Asia, it has 468 meteor parts. Situated approximately 4,498 million kilometer away from Sun, it completes one rotation its axis in 16 hours and a revolution around sun in 164.8 years. NCERT Solutions for Class 6 Social Science Geography - Chapter 1 ... A Human-made Satellite is an artificial body. Winds blow at speed of 2100 kilometers per hour in the atmosphere of this planet. Our mother planet’s name has not been derived from Greek or Roman language but from old English and Germanic. Natural satellites rotate on their axis also. Travelling at the speed of light (300,000 km per second), it would take 100,000 years to cross our Milky Way galaxy alone. Such wonderful sights are very common in our solar system. Your test duration begins as soon as you view the first question. It completes its revolution around Sun in 88 days while takes 58 days and 16 hours to complete its one rotation on its axis. All the planets are spherical and are total eight in number. The Universe is incredibly huge. Parts of meteorites that remain unburnt and reach our Earth in small parts are named as meteorites. Here are some important objective types of General knowledge for your upcoming exams. It is carried by a rocket and placed in the orbit around the earth. Interactive Science Activities. Galaxies themselves are collected together into clusters and superclusters that make up what astronomers call the "large-scale structure of the universe". It is around 3,84,403 kilometers away from Earth and takes 27.3 days to complete its revolution around Earth. Halley’s Comet was seen in 1910, then in 1986 and next it shall be sighted in 2062. Nearest star to the Earth. As yet mankind has touched only this celestial body i.e. About 99.85% mass of solar system lies with sun only whereas planets constitute – 0.135%, comets – 0.01%, satellites – 0.00005%, dwarf planets – 0.000002%, shooting stars – 0.0000001% and inter planetary medium consists of 0.0000001% of the rest of mass. In the sequence of their distance from sun, these may be retented from initial alphabets of words in this sentence; My Very Efficient Mother Just Served Us Nuts. The galaxies are also moving further apart as the space between them expands. A universe contains approximately 10^13 number of galaxies. Answer: Sun. Many a times, power grids get destroyed or seized because of disturbance at the surface of Sun. These celestial bodies revolve round the sun in anti-clockwise direction. CBSE Class 6 Geography Worksheets - The earth in our solar system - Practice worksheets for CBSE students. It’s mind-blowing to think that there’s literally an entire universe out there just waiting to be explored, and most of us don’t know a thing about it. cosmic rays). It completes its revolution round sun is 224.7 days while takes 243 long days to complete its rotation round its own axis from East to West. These solutions for The Universe are extremely popular among Class 6 students for Science The Universe Solutions come handy for quickly completing your homework and preparing for exams. So here are some amazing facts about Earth that everyone should know: 1. One can see a streak of star light in the sky sometimes, it gives an impression that any part of star has broken away. GEOGRAPHY CLASS: 6 CHAPTER 1 The earth in our solar system. Space is also filled with radiation (e.g. These celestial bodies were part of sun earlier and are made of frozen gases, ice and small rocky substances. 2. Essay on Our Universe: Definition, Stars and Solar System! Comets are being traced regularly. Presence of Methane gas makes it look green. Higher cloud formation consists of Methane gas while lower formation consists of water. Inner planets are those planets which are nearer to sun as compared to others. Its atmosphere is also quite different to that of other planets as it consists of 77% Nitrogen and 21% Oxygen which gives it a name of ‘blue planet’. Mercury The planet consists of around 900 full circles and various incomplete arcs. Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Social Science Geography for Class 6 so that you can refer them as and when required. Temperature at photosphere of sun is only 6000° Kelvin while ends of chromospheres experience it 10 thousand degree. The spacecraft that reached in the orbit of Mars is named 440 Newton Liquid Apogee Motor (LAM). Find paragraphs, long and short essays on ‘Our Universe’ especially written for school and college students. In the solar system, Earth is the fifth largest of the planets. Its rotation on its axis is very fast and completes one in just 10 hours causing severely blowing winds. It is designed by scientists to gather information about the universe or for communication. There is only one Universe and everything that exists in this Universe itself. Its soil has very rich iron content and because of Ferrus content it looks red. Sun is not stationery and completes one rotation round its own axis in 25 days. Actual distance varies from 221,457 to 252,712 miles. Each one contains huge populations of stars. This fusion gives birth to energy. At corona this temperature varies from 10 lakh Kelvin to 50 lakh Kelvin. 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