Test Your knowledge on 'Stars' devised according to the NCERT science syllabus for Class-8. Attempt all the questions by clicking on the right option. Submit the completed Form by clicking the 'Submit' button at the end of the Form. Get your score and the correct answer by clicking the 'View score' button. Good Luck! (Although the quiz is primarily meant for Class-5, students from Class-6 to Class-10 can, however, participate and enjoy the fun of the quiz.) You can also write your comments on the quiz in the Comment space given at the end of this Page or send your comments and questions related to this quiz for answer directly to the email account given below:
curiousitygroi@gmail.com Before attempting the quiz, you may read an overview of the topic given below which will make you feel easier to answer the questions.
Overview:
The Sun has a family of eight planets moving around it in fixed paths known as the Solar System. The Sun is a star because it has its own source of energy in the form of light and heat and other forms of radiation. The four nearby planets to the Sun, i.e. Mercury, Venus , Earth and Mars are known as Rocky planets as their cores are mostly made up of rocks. The remaining planets are known as the Gaseous giants as they are huge in size and primarily made up of gas. Mercury is the closest planet to the Sun. It has no atmosphere. Venus is the brightest planet and commonly known as the Evening star. It is also the hottest planet of the Solar System as its carbon dioxide rich gaseous atmosphere traps most of the heat received from the Sun due to greenhouse effect. The Earth is the densest planet of the Solar System. It is the only known planet in the whole universe to possess life. It is situated at the right distance from the Sun to receive just the heat needed for sustaining life. It has also an ozone layer to protect life from the hazardous ultraviolet radiations of the Sun. The red planet Mars is the only planet where life could exist apart from Earth. Jupiter is the largest planet of the Solar System and is often called a Failed star as it ran short of becoming a star due to a little less mass. The planet Saturn is unique because it possesses a bright ring which can be clearly seen with a small telescope. Unlike other planets, the Uranus axis is highly tilted towards the Sun, making the duration of seasons very long there. The last planet of the Solar System , Neptune, is known for its high velocity wind systems. Apart from the planets, there is a band of minor planets, called the Asteroid Belt, in between the orbits of Mars and Jupiter. Moon is the natural satellite of Earth. Its surface is full of craters which were caused due to meteorite impacts long ago. Galileo discovered the four bigger moons of Jupiter with his telescope in 1609. While Ganymede of Jupiter is the largest moon of the Solar System , Deimos of Mars is the smallest moon.
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