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A self-starting siphon
Secure a piece of glass or plastic tube about 2.5 cm in diameter and 8 to 10 cm in length. Fit single end with a one-hole stopper, carrying a short length of glass tube that extends about a centimetre under the stopper on the inner side. Fit the other end of the large tube with a two-hole stopper. By one of the holes in the two-hole stopper place a jet tube which extends up by the larger tube and into the opening of the glass tube in the one-hole stopper. Connect a long rubber tube to the glass tube in the single-hole stopper
Disposal of Chemical Wastes : We shall deal with some commonly occurring chemical wastes. If you need to know more details covering the disposal of a wide range of chemicals, you
what kills head lice
For chemically reactive wastes : The chemical property of the waste could be used in its removal in a number of ways as given below: i) Some water-reactive waste could be dispo
Determine the amount of Amino acids in Urine Normal urine contains only small amount of certain amino acids, for example, glycine and glutamine. Abnormal amounts and types of a
Explain the Conditions for Ventricular Fibrillation Ventricular fibrillation may be seen in the following two conditions: 1) When a person is electrocuted, and 2) As a c
Explain the Circumvallate papillae: These are the largest of the papillae, about 8 to 12 in number. These are arranged in a V-shape.
Explain the Menstrual Phase - Menstrual Cycle If the ovum is not fertilized, a high level of progesterone in the blood inhibits the activity of pituitary gland and the producti
First Hominids The First Human Fossil The earliest human like or hominid remains come from two separate East African sites. Ethiopia has yielded several hundred fossil fragment
Question: a) Define atmospheric pressure, stating clearly its unit in meteorology. The atmospheric pressure at the foot of hill is 1013 hPa. What would be the pressure at th
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 harde
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