Pollution of Air and Water Class 8 Notes

Pollution Of Air And Water Class 8 Notes – Chapter 18 In chapter 18 of class 8 science, we study the harmful changes taking place in our surroundings and their effects on our lives. The substance that contaminates air and water are known as pollutants. Air gets polluted from natural sources smoke and dust arising …

Stars and the Solar System Class 8 Notes

Stars And The Solar System Class 8 Notes – Chapter 17 The planets, the stars, the moon and other bodies in the sky are known as celestial bodies. Astronomy is a branch of science that studies celestial bodies and their associated phenomena. The change in the shape of the moon every day is one of …

Some Natural Phenomena Class 8 Notes

Some Natural Phenomena Class 8 Notes – Chapter 15 The class 8 science chapter 15 discusses natural phenomena: lightning and earthquakes, and the measures to be taken to minimize the destruction caused by these phenomena. Let us take a look at some important points discussed in the chapter. Please refer Some Natural Phenomena Class 8 …

Chemical Effects of Electric Current Class 8 Notes

Chemical Effects of Electric Current Class 8 Notes – Chapter 14 Chemical Effects of Electricity:The passage of electric current through a conducting solution results in chemical reactions. Following are the chemical reactions that can occur: Gas bubbles formed on electrodes Deposition of metals on electrodes Colour change in the solutionThe reactions depend on the solution …

Force and Pressure Class 8 Notes

Force And Pressure Class 8 Notes – Chapter 11 In science, a push or pull of an object is known as force. The interaction between two objects arises force. Force has both magnitude and direction. The strength of a force is expressed in magnitude. Force brings about a change in the direction or state of motion of …

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