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CBSE Pathshala: Stars and The Solar System- Question bank for Class8th

8 th      Stars and the solar system    Assignment                     1.  Define:  Celestial objects, Phases of Moon, Light year, Constellation, Asteroids, Meteors, Meteorite, Comets, and Crescent Moon 2. Why do phases of moon occur? 3. Explain the surface of moon. 4. What is the distance of the Alpha centaury? 5. Why does stars appears to move from East to West? 6. Why does pole star does not appear to move? 7. Name a constellation which can be seen (a) during summer  (b) during winter 8. How can we locate pole star using the constellation Ursa major (draw diagram also) 9. Name the brightest star in the sky which is located closed to Orion 10. (a) Name the planet nearest to Sun                                          (b)Name the brightest planet in the sky       (c)Which planet is often called a morning or an evening star?       (d)Name a planet which rotates from east to west       (e)Which planet is called Red planet?        (f)Which is the la

8th Math Probability CBSE Test Paper

Work sheet: Subject – Maths, Class – VIII- Chapter: Probability 1. A coin is tossed twice. Find the robability of getting both tails? 2. Find the probability of getting even number between 10 to 25. 3. A die is thrown once. Find the probability of getting a prime number. 4. One card is drawn from a well shuffled deck of 52 cards. Find the probability of getting a face card. 5. What is the maximum value of the probability for an event? 6. A bag contains 9 red, 7 white and 4 black balls. A ball is drawn at random. Find the probability that the ball drawn is not red. 7. In the word “EDUCATION” find the probability of getting a vowel. 8. Out of 400 bulbs in a box, 15 bulbs are defective. One bulb is taken at random from the box. Find the probability that the bulb is not defective. 9. A die is thrown once. What is the probability of getting a multiple of 3. 10. A card is drawn from a pack of 52 cards. Find the probability of drawing a red face card. 11. A bo

Class8 Direct and Inverse Proportions with Solution by jsunil sir

Useful Download rther reading  post  QUADRILATERAL THEOREMS PROPERTIES OF PARALELLOGRAM MEAN MEDIAN MODE COMPOUND INTEREST ALGEBRIC EXPRESSION ALGEBRIC IDENTITY Square and square root Factorization CUBES AND CUBE ROOTS  

Structure of atom for class 9 solved Summative Assesment

           CBSE Class IX ( 9th) Science         Chapter 4. Structure Of The Atom JSUNI TUTORIAL,  PANJABI COLONY, SAMASTIPUR, BIHAR Multiple Choice Questions ( 1marks)                1 x  5  =  5 marks 1. Which of the following correctly represent the electronic distribution in the Mg atom? (a) 3, 8, 1          (b) 2, 8, 2         (c) 1, 8, 3        (d) 8, 2, 2 2. Rutherford’s ‘alpha (α) particles scattering experiment’ resulted in to discovery of (a) Electron   (b) Proton      (c) Nucleus in the atom       (d) Atomic mass 3. The ion of an element has 3 positive charges. Mass number of the atom is 27 and the number of neutrons is 14. What is the number of electrons in the ion? (a) 13             (b) 10             (c) 14                          (d) 16 4. Elements with valency 1 are (a) Always metals    (b) always metalloids          (c) either metals or non-metals      (d) always non-metals 5. The first model of an atom was given by (a) N. Bohr