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Cement and concrete
Secure a small bag of Portland cement. Have the pupils mix it with water and put it in tin can covers, paper cups, or small pasteboard boxes unless it hardens. Study its appearance and its properties. Break a piece of cement and study it. Mix the dry cement with about twice as much sand or gravel. This will form concrete. After adding water and mixing thoroughly place it in moulds. Permit these to arden various days. Again study the appearance and the characteristics of these samples.
What does regolith mean? Ans) This refers to a layer of loose surface material covering bedrock.
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write the structure having 7 carbon compound with 3 alt. bonds
factors which decide the broad area of scientic activity
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Another balloon experiment Stretch a rubber balloon over the neck of a little bottle. Place it in the receiver jar and delete some of the air with the pump. What happens? How d
How temperature influences the process of soil formation Temperature is another climatic agent which influences the process of soil formation. It affects the P/E ratio. If th
how increases in atmospheric concentrations of carbon dioxide and other greenhouse gases cause global warming.
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