NCERT 8th Class (CBSE) Science: Force and Pressure – Quiz 40 Multiple Choice Questions related to NCERT 8th Class (CBSE) Science: Force and Pressure – Quiz: Every push or pull is called force. Force comes into action when an object interacts with other object. Force has magnitude and direction.
Read More »NCERT 8th Class (CBSE) Science: Synthetic Fibres and Plastics – Quiz
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 …
Read More »NCERT 8th Class (CBSE) Science: 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. …
Read More »NCERT 8th Class (CBSE) Science: Microorganisms – Quiz
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 …
Read More »NCERT 8th Class (CBSE) Science: Microorganisms
Question: What is a microorganism? Answer: Organisms that are so small that they can only be seen through a microscope, are called microorganisms or microbes. Question: Name the five groups into which microorganisms are divided. Which of these have only unicellular organisms? Answer: There are five major groups of microorganisms. …
Read More »NCERT 6th Class (CBSE) Science: Air Around Us – Quiz
NCERT 6th Class (CBSE) Science: Air Around Us – Quiz 22 Multiple Choice Questions related to NCERT 6th Class (CBSE) Science: Air Around Us – Quiz: Air is mixture of nitrogen, oxygen, carbon dioxide, water vapour and a few other gases. Some dust particles may also be present in it. …
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Question: What is the composition of air? or Write a short note on the composition of air. Answer: Air is mixture of nitrogen, oxygen, carbon dioxide, water vapour and a few other gases. Some dust particles may also be present in it. Air is a mixture of gases, mainly containing …
Read More »NCERT 6th Class (CBSE) Science: Garbage In, Garbage Out – Quiz
NCERT 6th Class (CBSE) Science: Garbage In, Garbage Out – Quiz 23 Multiple Choice Questions related to NCERT 6th Class (CBSE) Science: Garbage In, Garbage Out – Quiz: There is a need different methods for disposal. The biodegradable can be composted and turned into manure and the non biodegradable can be …
Read More »NCERT 6th Class (CBSE) Science: Garbage In, Garbage Out
Question: Distinguish between bio-degradable and non bio-degradable. Answer: Biodegradable waste: Waste that will decay and mix with soil. Microorganisms can convert this waste into simpler from. Peels, meat, leaves are the example. Non biodegradable wast: Waste that will not decay and mix soil. Microorganisms cannot convert this waste into simpler …
Read More »NCERT 6th Class (CBSE) Science: Fun with Magnets
Question: Why does a freely suspended magnet point in the north-south direction? Answer: It is believed that earth behaves like a big bar magnet with it south pole towards geographical north-pole. That’s why a freely suspended magnet points in north-south directions. Question: Briefly explain the properties of magnet. Answer: The properties …
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