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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 the Hyperpnoea It is a term for an increase in the rate and depth of respiration. The cause of hyperpnoea may be voluntary or due to impulses from the hypothalamus.
Leguminous crop grown under phosphate deficiency conditions may suffer from N deficiency as well. Explain. Rhizobium bacteria infect the roots of leguminous plants and lead to
Mechanics: Another hnch of science which is, perhaps, the greatest contribution of Greek civilisation is mechanics. Mechanics developed out of the necessities of imgation,
What is the significance between sensory transduction and sensory adaption?
why do we breathe?
Experiment of Making a model of a simple flower By Using of modelling clay, coloured paper and toothpicks make 3D-dimensional models representing the parts of a typical flower.
Explain the Propulsive Movement The basic propulsive movement of the gastrointestinal tract is peristalsis. Peristalsis is the movement by which the gastrointestinal canal, hav
What are the differences between prejudice, discrimination and stereotype? Prejudice; This is generally referred to as being unfair, bias or opinions towards another person
Question 1: (i) Show a diagram to show how temperature varies with altitude. Show clearly the location of the tropopause, stratopause and mesopause. (ii) Briefly explain the
Optical specificity Some enzymes exhibit absolute optical specificity for at least a portion of the substrate molecule. For example, the enzyme maltase catalyzes the hydrolys
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