Ppt Chapter 6 Physical And Chemical Changes Powerpoint Presentation Class 7th chapter 6 physical and chemical changes.pptx. the document discusses physical and chemical changes, providing examples of each type of change and explaining the key differences between them. physical changes alter a substance's physical properties but do not create new substances, while chemical changes produce one or more new. Melting of wax boiling of water. rusting of iron. burning of candle burning of wood. burning of coal. 2) types of changes : changes are of two main types. they are : i) physical change ii) chemical change physical change : is a change in which no new substance is formed.
Ppt Chapter 6 Physical And Chemical Changes Powerpoint Presentation 5 physical changes physical changes • •changing the state of matter •changing the color •changing the temperature •changing the shape •changing the texture 6 physical changes 7 chemical properties relates to a substance's ability to undergo changes that transform it into different substance examples rustability flammability. Ripping the magnesium is a physical change, because we are changing the size and shape, but not changing what the substance is. burning is a chemical change because a new substance is formed. the elements magnesium and oxygen bond to form a white powder magnesium oxide. 3. a penny is coated with zinc then heated. This document discusses the difference between physical and chemical changes. physical changes involve alterations to a substance's physical properties like size, shape, or phase without changing its chemical composition. examples given are melting ice, tearing paper, and blowing a balloon. physical changes are reversible. Physical changes involve alterations to a substance's physical properties like size, shape, or phase without changing its chemical composition. examples given are melting ice, tearing paper, and blowing a balloon. physical changes are reversible. chemical changes result in new substances forming with different chemical compositions and properties.
Ppt Chapter 6 Physical And Chemical Changes Powerpoint Presentation This document discusses the difference between physical and chemical changes. physical changes involve alterations to a substance's physical properties like size, shape, or phase without changing its chemical composition. examples given are melting ice, tearing paper, and blowing a balloon. physical changes are reversible. Physical changes involve alterations to a substance's physical properties like size, shape, or phase without changing its chemical composition. examples given are melting ice, tearing paper, and blowing a balloon. physical changes are reversible. chemical changes result in new substances forming with different chemical compositions and properties. 9 chemical changes a chemical change occurs when atoms link together in new ways to create substances different from the original substances. it is also known as a chemical reaction. 10 we often notice a change in odor when we cook food. we often detect a chemical change by noticing a change of odor or aroma. About this document. document description: chapter 6 physical and chemical changes ppt, science, class 7,cbse for class 7 2024 is part of class 7 preparation. the notes and questions for chapter 6 physical and chemical changes ppt, science, class 7,cbse have been prepared according to the class 7 exam syllabus.
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