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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.
Digestion in the Mouth The mouth receives food. The tongue serves in swallowing, manipulating the food for chewing and in perceiving taste. The teeth mechanically subdivide
Personal sensitivity : There are other dangers from substances which are not so common. e.g. mutagens , but one aspect we have not mentioned involves you. The eyes, lungs and skin
what are the organs of respiration in the lower form of animals?
A weather picture A piece of white blotting paper is immersed in a solution having two parts cobalt chloride to one part common salt. While wet the paper will stay pink, but wh
Explain Tidal Volume and Inspiratory Reserve Volume Tidal Volume (TV): It is the volume of air that is taken in or given out during quiet breathing. The volume 1s about 500
what are 5 different types of asexual reproduction?
what is the unsaturated
This study will examine surface roughness encountered in CNC milling and it will consider the factors that affect the surface roughness of aluminum and mild steel and the means by
whats the whole profile for the protozoa fossil
1. Explain the difference between society and culture. 2. What is the difference between Structural Functionalist Theory and Symbolic Interaction Theory? 3.Explain the differ
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