MADE BY- RIYA JOSHI GROUP -1MEMBERS- SAMRIDDHI BANERJI, DHRUV GUJAR , DIKSHA INGLE , POSH SAFAYA, RIYA JOSHICLASS – VIIICGUIDED BY – SHEPHALI MAM

SOLAR SYSTEM.....?

THE SOLAR SYSTEM WAS FORMED ABOUT 4560 MILLION TEARS AGO. IT IS MADE UP OF THE EIGHT PLANETS-

MERCURY , VENUS , EARTH , MARS , SATURN , JUPITER, URANUS, NEPTUNE

THE SUN

SUN IS THE NEAREST STAR FROM US. ITS MASS IS EQUIVALENT TO 99.98% OF THE MASS OF THE ENTIRE SOLAR SYSTEM ELEMENTS. IT IS MOSTLY MADE UP OF TWO LIGHT GASES 75% HYDROGEN, AND 23%HELIUM WITH RELATIVELY SMALL QUANTITIES OF OTHER ELEMENTS SUCH AS GOLD. IT HAS A SURFACE TEMPERATURE OF 5880K(KELVIN). IT SPIN AT A DIFFERENT RATE.

THE PLANETS

A CELESTIAL BODY MOVING IN AN ELLIPTICAL ORBIT ROUND A STAR IS CALLED A PALNET . PLANETS DO NOT TWINKLE AND KEEP CHANGING THEIR POSITIONS WITH RESPECT TO STARS .

MERCURY MERCURY IS AN SMALL ROCKY PLANET WHOSE SURFACE HAS BEEN HEAVILY CRATERED BY METEORITES . THE SURFACE ALSO HAS MANY RIDGES CALLED RUPES, YHAT ARE BELIEVED TO HAVE FORMED AS THE CORE OF THE YOUNG PLANET COOLED AND SHRANK. MERCURY MOVES FASTER THAN ANY OTHER PLANET. SURFACE TEMPERATURE ON THE PLANET IS 430C ON T5HE SUNLIT SIDE AND -170 ON THE DARKER SIDE.

VENUSVENUS IS SLIGHTLY

SMALLER THAN THE EARTH AND PROBABLY WITH A SIMILAR INTERNAL STRUCTURE OF A PARTLY MOLTEN METAL CORE SURROUNDED BY A ROCKY MANTLE AND CRUST. BEING THE HOTTEST PLANET OF OUR SOLAR SYSTEM IT HAS A SURFACE TEMPERATURE OF 480C. IT ROTATES FROM EAST TO WEST AND HAS NO MOON OF ITS OWN.

EARTH

THE FIFTH LARGEST PLANET IN THE SOLAR SYSTEM. THE EARTH IS THE ONLY PLANET TO SUPPORT LIFE. THE AXIS OF THE ROTATION OF THE EARTH IS NOT PERPENDICULAR TO THE PLANE OF ITS ORBIT. THE EARTH ONLY ONE MOON. ITS ATMOSPHERE IS PROTECTED WITH A LAYER OF OZONE.

MARS

MARS IS ALSO KNOWN AS THE RED PLANET BECAUSE OF THE RED IRON OXIDE DUST THAT COVERS ITS SURFACE. IT IS ORBITED BY TWO TINY MOONS PHOBOS, DEIMOS.

JUPITER

JUPITER IS THE LARGEST MOST MASSIVE PLANET OF THE SOLAR SYSTEM.IT HAS TWO FAINT RINGS, AND IT IS ORBITED BY ITS 16 KNOWN MOONS. ITS AVERAGE TEMPERATURE IS +14.85 TO +19.85.

SATURN

SATURN IS THE SECOND LARGEST PLANET IN THE SOLAR SYSTEM BUT THE LEAST DENSE. ITS DINSTINCTIVE RINGS ARE MADE OF ICE AND ROCK WHICH WERE PROBABLY PARTS OF COMETS AND ASTERIODS. IT APPEARS YELLOWISH IN COLOUR.

URANUS

URANUS IS THE THIRD LARGEST PLANET IN THE SOLAR SYSTEM. IT IS A COLD GAS GIANT BELIEVED TO CONSIST OF A MIXTURE OF GAS AND ICE AROUND A SOLID CORE. URANUS IS TILTED AT 97.9 AND SO ROLLS ON ITS SIDE ALONG ITS ORBITAL PATH. IT HAS 15 MOONS 10 FAINT RINGS AND A BROAD RING OF DUST.,

NEPTUNE

THE NEPTUNE IS BELIEVED TO CONSIST OF A SMALL SOLID CORE SURRUONDED BY A MIXTURE OF LIQUIDS AND GASES . IT HAS FOUR UNSTABLE RINGS AND 8 KNOWN MOONS.

rules

THERE SHOULD BE SILENCE AND DISCIPLINE MAINTAINED DURING QUIZ IF NOT 1 MARKS WILL BE DEDUCTED

3 MARKS WILL BE GIVEN FOR EVERY CORRECT ANSWER

25 SECONDS WILL BE GIVEN TO ANSWER THE QUESTION

2 MARKS FOR BONUS POINT

THE CONSTELLATION WHICH CONTAINS POLE STAR IS

URSA MAJOR URSA MINOR

ORION CASSIOPEIA

MARS APPEARS RED DUE TO

IRON OXIDE COPPER OXIDE

CALCIUM OXIDEALUMINIUM OXIDE

THE BRIGHTEST PLANET IN THE SOLAR SYSTEM IS

MERCURY SATURN

VENUS NEPTUNE

FARTHEST PLANET OF SOLAR SYSTEM IS

MERCURYJUPITER

SATURNNEPTUNE

THE AXIS OF THE EARTH IS SLIGHTLY TILTED AT 23.5degrees THIS IS RESPONSIBLE FOR

PHASES OF MOONLIFE ON EARTH

DAY AND NIGHTCHANGE IN SEASONS

WHICH OF THE FOLLOWING IS NOT A PLANET?

JUPITER SATURN

NEPTUNEHALLEYS

MARS

WHICH OF THE FOLLOWING IS A LUMINOUS BODY

MOON MOON

MERCURY SIRIUS

A PLANET KNOWN AS A STAR

VENUS MERCURY

SIRIUS MARS

WHICH OF THESE IS NOT A STAR?

SUN SIRIUS

ALPHA CENTURY URANUS

WHICH OF THESE ABOUT POLE STAR IS FALSE

IT EXISTS ON NORTH POLE OF THE EARTH

IT IS SITUATED IN THE DIRECTION OF THE EARTH AXIS

IT DOES NOT APPEAR TO MOVE

ITIS LOCATED IN LINE WITH THREE MIDDLE STARS OF ORION