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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.
Explain Isoelectric pH Isoelectric pH: Many ionizable groups are present in a protein molecule. Depending on the pH of the medium, some of these groups act as proton
how does excretory system of lizard work?
#qDescribe the factors which decide the broad area of Scientific activityuestion..
Explain Basophils - Types of White Blood Cells They form only 0.05% of the leukocytes. They release histamine that plays a major role in inflammatory reactions. Basophils also
Q. Do you know of any activity which may be polluting this water source? Answer: The discharge of waste water from homes, industries, hospitals, etc. into the river pollutes thi
Define Nerve Cell Morphology The neurons in the mammalian nervous system occur in a variety of shapes and sizes. A typical cell has a cell body, the dendrites, axon and its ter
Hey, I have to ask an expert questions for an assignment and I was wondering since you have a degree in botany how would a multi vitamin affect a plant?
Q. What is the major source of fresh water in the city/town/village where you live? Answer : River is a major source of fresh water.
what is the significance?
A look at Microwave Processing The first thing which comes to our mind while on the topic of microwave processing is what microwaves are? Microwaves are basically electromagne
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