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173 Cards in this Set
- Front
- Back
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Size of sun relative to earth |
109 times earth |
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Weight of sun |
2 x 10^27 tons |
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Energy source of sun |
Fusion of hydrogen into helium |
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Time taken by light to reach earth surface from sun |
8 minutes 16.6 seconds |
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Sun's present age and total life |
Age is 5 billion years and total life is 10 billion years |
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Revolution time of mercury |
88 days (fastest revolution in solar system) |
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Atmosphere and no. of satellite of mercury |
No atmosphere and no satellite |
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How much smaller Venus is as compared to earth |
It is slightly smaller. 500 km less in diameter |
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Why Venus is popularly known as evening star and morning star |
It is seen in the east in the morning and in the west in the evening. It is not possible to see it all over the night. |
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Which is the brightest planet |
Venus is the brightest planet because of 0.65 % albedo, the reflecting power |
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Which is the closest planet to the earth |
Venus is the closest planet to the earth |
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Which is the hottest planet in the solar system |
Venus is the hottest planet in the solar system it is because of greenhouse effect as its atmosphere contain 90 to 95% carbon dioxide. The night and the day temperature is almost same |
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Which is the planet which rotates backward unlike others |
Venus |
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How many satellite Venus has? |
No satellites |
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Which planet is known as Red Planet |
Mars |
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How many satellites does Mars has ? name them. |
Mars has two satellites namely phobos and deimos |
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Which planet is the largest of all planet? how much percent of the total mass of all planets is this planet? |
Jupiter. 71% of the total mass of all planets |
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Which planet is called Lord of the heavens? |
Jupiter |
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Which planet gives off more energy than it receives from the Sun? |
Jupiter. Because of the heat inside. |
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Jupiter atmosphere mainly contains of? |
Hydrogen, Helium, Methane and ammonia |
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There is a spot on Jupiter what it is called and what it represents? |
The spot on Jupiter is called Great Red spot. It represents a huge Storm |
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What is the rotation time of Jupiter? |
9.8 hours. It is the fastest in the solar system. |
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How many satellites Jupiter has? Name them. |
Jupiter has 67 satellites. The most prominent are Europa, Gannymede and Callisto. |
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Which is the largest natural satellite of the solar system? |
Gannymede (Jupiter) |
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Which is the second largest planet in the solar system? |
Saturn |
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Rotation and revolution time for saturn? |
Saturn takes 10.3 hours to complete a rotation and 29 years to complete one revolution. |
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Which is the least dense Planet of the solar system? |
Saturn (30 times less dense as compared to earth) |
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What is the unique feature of Saturn? |
Unique feature is its system of rings (3 well defined) |
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How many satellites does Saturn has? |
It has 62 satellites. Titan is the prominent one. |
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Which planet rotates from north to south and why? |
Uranus rotates from north to south as it is inclined at an angle of 98° to its Orbit. |
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Which planet is surrounded by a system of 9 faint rings? |
Uranus |
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How many satellite Uranus has? |
27 satellites. Prominent are Miranda and Ariel. |
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Revolution and rotation time for Neptune? |
The rotation time is 15.7 days and a Revolution time is 165 years. |
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What is circumference and diameter of the Moon? |
circumference of 11000 km 3475 km in diameter. |
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Gravitational pull of moon as compared to earth? |
1/6th |
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How much time does the moon take to complete a Revolution around Earth? |
The moon takes about 27 days, 7 hours, 43 minutes and 11.47 seconds to complete one Revolution around Earth. |
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Rotational period of moon? |
It rotates on its axis in exactly the same time as that of its revolution. That is why we only see one side of the moon i.e. 59% of it's surface. |
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Atmosphere of moon? |
No atmosphere |
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How much time the light from moon takes to reach Earth? |
1.3 seconds |
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Who were the first astronomers to reach Moon? |
Niels Armstrong and Edwin Aldrin reached moon on July 21, 1969 on Apollo Xl (landing spot is called 'sea of tranquility') |
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Which is the densest planet and what it is popularly known as? |
Earth is the densest planet. It is also called 'Blue planet'. |
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What is the circumference, diameter and area of Earth? |
Circumference is 40232 km Diameter is 12742 km Surface area is 510 million sq. km |
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What is the rotational period and direction of rotation of earth? |
The rotational period is 23 hours, 56 minutes and 40.91 seconds. It rotates on its imaginary Axis from west to east. |
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Longest and shortest day on earth? |
June 21 is the longest day in Northern hemisphere. While December 22 is the shortest day in the Northern hemisphere. (Vice versa for southern hemisphere) |
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Days and nights are almost equal at which location of Earth? |
At the equator. |
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Revolution period of Earth? |
365 days, 5 hours, 48 minutes and 45.51 seconds. This results in one extra day every fourth year is called leap year. |
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Earth's orbit and its orbital velocity? |
Earth's motion is in elliptical Orbit around the sun. Its orbital velocity is 29.79 km/s. |
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Equinoxes are the dates when days and nights are equal. Which are the two equinoxes? |
March 21 vernal Equinox September 23 or Autumnal Equinox |
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What do you mean by solstice? |
Solstice is the time of the year when the difference between the length of days and length of Nights is the largest. During these days the sun shines directly over the tropics. |
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Which are the two solstices? |
June 21 summer solstice December 22 Winter solstice |
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What are latitudes? |
Latitudes are imaginary line drawn parallel to the equator. |
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Latitude values of equator and the poles? |
Equator represents 0° latitude, while the north pole is 90°N and the South Pole is 90°S. |
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Latitude values of tropic of cancer and Tropic of Capricorn? |
23 1/2°N represents Tropic of Cancer. 23 1/2°S represents Tropic of Capricorn. |
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What are longitudes? |
On the globe, the lines which are drawn as a series of semi circles that extends from north pole to South Pole through the equator are called longitudes. There are also called meridians. |
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Longitudinal extent of India? |
30 degrees approx. |
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What time zone India has adopted? |
India has adopted a single time zone selecting the 82.5°E longitude for the standard time, which is 5 hours and 30 minutes ahead of GMT. (Greenwich Mean Time) |
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What is international date line? |
It is the 180 degree Meridian running over the Pacific Ocean debating at aleutian Islands, Fiji, Samoa and Gilbert Islands. |
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What is the fun fact of international date line? |
Travellers crossing the data line from west to east (i.e. from Japan to USA) repeat a day and travellers crossing it from east to west (i.e. from USA to Japan) lose a day. |
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What is a lunar eclipse? |
When earth comes between sun and moon, Earth shadow falls on the moon causing lunar eclipse. It occurs only on full moon day, however it does not occur on every full moon day. |
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What is a solar eclipse? |
When moon comes between sun and earth it causes solar eclipse. It can be partial or total. |
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When does the Solar eclipse occur,? |
It occurs on a new moon day when the moon is in line with the sun. however, due to the inclination of the Moon's Orbit, a solar eclipse does not occur on every new moon day. |
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What is crust with respect to earth? How thick it is? |
The crust is the outermost and the thinnest layer of the Earth's surface. It is about 8-40 km thick. |
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What are the two layers of the earth's crust? |
The upper lighter Laya is called sial (silicate + aluminium) The lower density layer is called Sima (silicate + magnesium) |
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Internal structure of earth is divided into three parts what are they? |
The crust, the Mantle and the core. |
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The Mantle extends to a depth of ________ km |
2900 kilometres |
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The line of separation between the Mantle And The crust is known as _________. |
Mohoviricic discontinuity |
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Where does the core of the Earth lie? |
The core lies beyond a depth of 2900 km. |
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The line of separation between the Mantle and the core is called _____. |
Gutenberg-wiechert Discontinuity |
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Name the 8 important elements of earth crust. |
Oxygen 46.50% , silicon 27.72%, aluminium 8.13%, iron 5.01%, calcium 3.63 %, sodium 2.85%, potassium 2.62% and magnesium 2.09%. |
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List the continents according to their area. |
Asia Africa North America South America Antarctica Europe Australia |
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Tallest animal |
Giraffe |
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Largest archipelago |
Indonesia |
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Fastest bird |
Swift |
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Largest bird |
Ostrich |
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Smallest Bird |
Humming bird |
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Tallest building |
Burj Khalifa, Dubai |
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Longest canal |
Suez Canal |
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Highest capital |
La paz (Bolivia) |
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Biggest city in area |
Mount Isa (Australia) |
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Largest city in population |
Tokyo (Japan) |
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Costliest city |
Tokyo |
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Highest City |
Wenzhuan (China) |
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Largest continent |
Asia |
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Smallest continent |
Australia |
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Biggest country area wise |
Russia |
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Largest country population |
China |
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Largest country electorate |
India |
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Largest creature |
Blue whale |
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Largest delta |
Sundarban (Bangladesh and India) |
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Largest desert in the world |
Sahara (Africa) |
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Highest dam |
Nurek Dam (Tajikistan) |
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Largest dome |
Astrodome (Housten, USA) |
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Largest epic |
Mahabharat |
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Largest irrigation scheme |
Lloyd Barrage, Sukkhur (Pakistan) |
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Largest island |
Greenland |
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Largest sea |
Meditarian sea |
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Largest library |
United States Library of Congress, Washington DC |
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Highest mountain peak |
Everest (Nepal) |
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Longest mountain range |
Andes (South America) |
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Largest museum |
British Museum, London |
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Largest ocean |
Pacific Ocean |
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Largest Peninsula |
Arabia |
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Largest Park |
Yellow stone National Park (USA) |
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Coldest place which is habitated |
Verkhoyansk (Siberia) |
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Driest place |
Iqique (in Atacama desert, Chile) |
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Hottest place |
Azizia (Libya, Africa) |
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Rainiest place |
Mausinram (Meghalaya, India) |
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Biggest planet |
Jupiter |
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Smallest planet |
Mercury |
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Highest plateau |
Pamir (Tibet) |
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Longest platform |
Gorakhpur (India) |
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Longest railway |
Trans-Siberian railway |
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Largest railway station |
Grand Central terminal (Chicago, USA) |
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Longest river |
Nile (Africa) |
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Name five layers of atmosphere |
Troposphere Stratosphere Mesosphere Ionosphere Exosphere |
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Which is the layer nearest to the Earth surface |
Troposphere. |
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Thickness of troposphere? |
8 km at the poles to 16 km at the equator. |
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Name the layer where all weather phenomenon occur. |
Troposphere. |
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________ separates troposphere from stratosphere. |
Tropopause. |
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Which layer provides ideal condition for flying large airplanes? |
Stratosphere. |
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Which layer contains ozone? What is this region called? What is the function of the ozone layer? |
Troposphere. Ozonosphere. Ozone Layer absorbs the ultraviolet rays from the Sun. This layer has a comparativey high temperature due to the absorption of ultraviolet radiation from the Sun. |
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Extent of mezosphere |
Up to a height of about 80 kilometres. In this layer the temperature decreases with height and falls to about - 100° c at 80 km height |
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Extends of ionosphere? |
It extents to about 500 to 600 km |
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Why the name ionosphere? |
It is called so because it contains electrically charged particles (ions) that reflect the radio waves back to the earth thus making Radio Communication possible. |
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Which layer protects earth from falling meteorites? |
Ionosphere. |
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In which layer the earth's gravity is extremely weak? |
Exosphere. |
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The outer part of exosphere is called ________. |
Magnetosphere. |
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What is the term 'Hydrosphere'? |
Hydrosphere is the name given to the mass of water that covers about 71% of the Earth's surface. |
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Approximate average depth of oceans. |
4 kilometres approx. |
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Name five major rivers of the world. |
Nile Amazon Mississippi Missouri Yangtze |
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Origin and Fall in of river Nile and river Amazon? |
Victoria lake - meditarian sea for river Nile. Andes (Peru) - Atlantic Ocean for river Amazon. |
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Where does the river Mississippi originates and falls in? |
Itaska lake Gulf of Mexico |
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Where does river Missouri originates and falls in? |
USA USA |
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Origin and Fall in of river Yangtze |
Tibetan Kiang Plateau China Sea |
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Largest lake |
Caspian sea |
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Largest lake (saline water) |
Caspian sea |
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Largest lake (Fresh water) areawise |
Lake superior |
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Highest lake |
Lake titicaca |
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Deepest lake |
Lake Baikal |
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India's largest lake |
Chilka lake |
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Name the oceans of the world (area wise) |
Pacific question Atlantic Ocean Indian Ocean Arctic Ocean |
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Deepest ocean trench |
Mariana Trench (Pacific Ocean) |
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Deepest trench in Atlantic Ocean? |
Puerto Rico Trench |
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Deepest trench in Indian ocean? |
Java Trench |
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Important deserts of the world. |
Sahara desert situated in North Africa. (It includes the libyan and the nubian desert) Australian desert situated in Australia (it includes gipson, Simpson, Victorian, great Sandy) Arabian desert situated in Arab countries (includes Rub'al Khali & an-nafad of Saudi Arabia and dast-e-lut & dast-e-kavir of Iran) Kalahari Desert situated in Africa (mainly in Botswana) Gobi desert in Mongolia Atacama desert in Central chile |
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Major mountain ranges of the world |
Andes located in South America Himalayas-karakoram-hindukush located in South Central Asia Rockies located in North America Great dividing range located in East Australia Atlas located in North West Africa |
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Major five islands in decreasing order of size |
Greenland New Guinea Borneo Madagascar Baffin |
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Most populated Island |
Java (Indonesia) |
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Largest island of India |
Middle Andaman |
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Major crops and their producer |
Rice produced by China, India, Indonesia, Bangladesh Wheat produced by China, India, USA, Russia Oilseeds produced by Brazil, China, Argentina, India Tea produced by China, India, Kenya Cotton produced by China, India, USA, Pakistan Natural rubber produced by Thailand, Indonesia, Vietnam, India Coffee produced by Brazil, Vietnam, Indonesia Coarse grain produced by USA, China, India, Romania |
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Important minerals in the world |
Copper ore Tin Lead Zinc Manganese Iron ore Copper Aluminium Cement Petroleum Silver |
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Major producers of iron ore |
China, Australia, Brazil |
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Major producers of copper ore |
Chili, Peru, China, USA |
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Major producers of tin |
China, Indonesia, Peru |
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Major producers of lead |
Australia, China, USA |
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Major producers of zinc |
Australia, China, USA |
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Major producers of Manganese |
China, Australia, South Africa |
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Major producers of aluminium |
China, Russia, Canada |
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Major producers of cement |
China, India, USA |
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Major producers of Petroleum |
Saudi Arabia, Russia, USA |
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Major producers of silver |
Peru, Mexico, USA |
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Major producers of coal |
China, USA, India |
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Latitude and longitude extent of India |
Latitude : 8°4' N to 37°6' N Longitude :. 68°7' E to 97°25' E |
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Which line divides India into almost equal parts? |
Tropic of Cancer |
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The southernmost point in Indian territory is _________. |
Indira Point (6°45') in great Nicobar Island. |
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The southernmost point of Indian mainland is _____. |
Kanyakumari also known as Cape comorin. |
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The standard time Meridian of India is 82°30' E, from where it passes through? |
It passes through the middle of India (from Naini, near Allahabad) |
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Stretch of India from north to south and from east to west |
3214 km from north to south
2933 km from east to west |
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Area of India and how much it accounts for the total world area? |
Area of India is 32,87,263 square kilometres.
It accounts for 2.4% of the total world area |
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Coastline of Indian mainland is ______. |
6100 km. |
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Coastline of India including the Lakshadweep and Andaman and Nicobar Islands is ________ km. |
7516.6 kilometres |
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Hills, plateaus, mountains, plains Sort these according to the total land mass they occupy in India |
Plains 43.3% Plateaus 27.7% Hills 18.6% Mountains 10.7% |
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What separates India from Sri Lanka? |
The Gulf of Mannar and the Palk Strait separate India from Sri Lanka. |
