Author: Pooja Ghimire

  • In which two factors does the heat gain or loss by an object depend upon?

    In which two factors does the heat gain or loss by an object depend upon? Answer: The heat gain or loss by an object depends upon the mass and specific heat capacity of the object.

  • Universe Science Notes Class 10

    The universe is a huge collection of all the heavenly bodies including galaxies, stars, constellations, planets, satellites, asteroids, comets, etc. along with matter, heat, and light around us. The branch of science dealing with the study of the universe and its components is called astronomy. Among millions of galaxies, the sun and the solar system…

  • Climate Change and Atmosphere Science Notes Class 10

    Table of contents Introduction Efforts made for reducing climate change Layers of atmosphere Ozone layer and Chlorofluorocarbons Artificial greenhouse and its advantages Greenhouse effect Adverse effect of Introduction Atmosphere is the layers of gases that surround the earth. Earth’s atmosphere mainly consists of Nitrogen(78%), oxygen(21%), carbon dioxide(0.03%) and other gases. Climate change is the change…

  • History of the Earth Science Notes Class 10

    Hypothesis about the origin of the earth Planetesimal Hypothesis Nebular Hypothesis Tidal Hypothesis Planetesimal Hypothesis George Wofan proposed this hypothesis in 1749 A.D. According to this hypothesis, the earth along with other planets and satellites was formed when a comet moving around the universe stroke the sun millions of years ago. Nebular Hypothesis Immanuel Kant…

  • Metal Science Notes Class 10

    Metals and Non-metals Metals Non-metals Metals are good conductor of heat and electricity. Non-metals are bad conductor of heat and electricity except graphite. They are malleable and ductile. They are not malleable and ductile. Metals have metallic luster. Non-metals do not have metallic luster except iodine. All metals (except mercury) are solid at ordinary conditions.…