Tag: Class 10 Science Notes

Introduction A conductor forms magnetic field around istelf when electric current is passed through it, this state is called magnetic effect of electric current. Electromagnet An electromagnet is a type of magnet which possess magnetism by application of electricity. As the following conditions are increased, the strength of an electromagnetic increases: number of turns of…

Universe Science Notes Class 10

Jan 5, 2022

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Pooja Ghimire

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

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Pooja Ghimire

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

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Pooja Ghimire

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…

Environmental Pollution and Management Science Notes Class 10

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Sujeeta Kshetri

Air Pollution The condition in which air loses its natural composition and quality due to addition of impurities is called air pollution. Burning of coal, usage of old and unrepaired automobiles, industrial smokes, volcanic eruptions, etc. are major sources of air pollution. Water Pollution The condition in which water loses its natural composition and quality…

Heredity Science Notes Class 10

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Shreeya Shrestha

In this chapter, we will discuss Heredity, Genetics and Mendel’s Law of Hybridization. Introduction The process by which characters or genes of parent organisms get transferred to the offsprings is called heredity or inheritance. The characters that get transferred from parents to the offsprings are called hereditary characters. Gene Gene is a sub-microscopic unit found…

Sexual Reproduction Science Notes Class 10

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Sexual Reproduction Sexual reproduction is one of the two methods of reproduction, the other being asexual reproduction. In sexual reproduction, offsprings or new organisms are developed by the fusion of male and female gametes. And, there is intermixing of hereditary characteristics. As a result, the offsprings produced by sexual reproduction are genetically different from their parent(s).…

Asexual Reproduction Science Notes Class 10

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Introduction Asexual reproduction is one of the two methods of reproduction, the other being sexual reproduction. In asexual reproduction, offsprings or new organisms are developed, often from a single parent, without the fusion of male and female gametes. Therefore, there is no intermixing of hereditary characteristics. As a result, the offsprings produced by asexual reproduction…

Sex Determination Science Notes Class 10

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