Tuesday , July 5 2022

Science

NCERT 8th Class (CBSE) Science: Metals and Non-Metals – Quiz

Metals And Non-Metals

NCERT 8th Class (CBSE) Science: Metals and Non-Metals – Quiz 31 Multiple Choice Questions related to NCERT 8th Class (CBSE) Science: Metals and Non-Metals – Quiz: Elements can be classified into metals and non-metals depending on their physical and chemical properties. The ore of a metal consists of rocks containing minerals of …

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NCERT 8th Class (CBSE) Science: Synthetic Fibres and Plastics – Quiz

Synthetic Fibres and Plastics

NCERT 8th Class (CBSE) Science: Synthetic Fibres and Plastics – Quiz 25 Multiple Choice Questions related to NCERT 8th Class (CBSE) Science: Synthetic Fibres and Plastics – Quiz: Human-made materials are obtained from natural raw materials by chemical processes. Polymers are materials with long chain molecules containing thousands of smaller molecules …

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NCERT 8th Class (CBSE) Science: Synthetic Fibres and Plastics

Synthetic Fibres and Plastics

Question: Give two examples each of natural and synthetic fibres. Answer: Natural fibres: Cotton, Silk Synthetic fibres: Rayon, Nylon Question: What is a polymer? Answer: Synthetic fibres are made up of molecules called polymers. Polymers are huge molecules-usually consisting of long chains made from thousand of similar small molecules called monomers. …

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NCERT 8th Class (CBSE) Science: Microorganisms – Quiz

Microorganisms

NCERT 8th Class (CBSE) Science: Microorganisms – Quiz 24 Multiple Choice Questions related to NCERT 8th Class (CBSE) Science: Microorganisms – Quiz: Organisms that are small and can be seen only through a microscope are called microorganisms or microbes. They are present all round us and also inside our bodies. Microorganisms belong …

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