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Making a 'gusher' with compressed air
Secure a large narrow-necked bottle like as is used for soda water. Place a single-hole stopper in the bottle. By the stopper put a 10- cm length of glass tube which has been drawn to a jet on the outside end. With a short length of rubber tube join a length of glass tube that will extend nearly to the bottom of the bottle. Fill the bottle about half full of water. Insert the stopper firmly and hold it in with your fingers. Next blow hard into the bottle; and when you free the pressure, point the bottle away from you. What happens?
What do all optical instruments and devices have in common?
Clarification of oil Crude oil contains a suspension of fine pulp and fibre from the plant material. It also contains smaller quantities of water, resins, colors and bacteria,
What are the ratios allowed for three year olds and Child Care Centers in Colorado and what is the citation of the rules that addresses ratios?
which is the probable principal source of nitrates and phosphate a. the water cycle b. nitrogen fixation c. bacterial decay d. change in environmental temperature e. changes in lig
Describe Common elements that make up the minerals of the Earth's crust? The Earth's crust, which is the layer of the Earth we are on now, is made of numerous minerals and rock
Analysis soil texture by Feel Method Soil texture was recognised from very early times by experienced farmers from the "feel" of moist soil placed between the thumb and the for
Define Calculi and casts - abnormal constituent of urine An abnormal concretion in the body usually formed of mineral salts and found in the gall bladder, kidney or urinary bla
what is the photosynthesis?
What are the benefits of organic matter Most of the benefits of organic matter are attributable to its favourable influence on soil structure and in turn on the volume of soil
DEtermine the properties of soil taxanomy The system of Soil Taxonomy is based on soil properties which in turn depend on soil genesis i.e., the way soil is formed. A number of
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