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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?
any information about animal tissue
Treatment of soil sickness Due to overuse without rest, soil becomes deficient in the requisite nutrients and loses its fertility. Rotation of crops and vegetables, such as
Disinfection of water streams originating from potable water plants is key in protecting environmental health. Describe the process design and application, along with potential pro
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
Effects of Soil Aeration Some soil pores are full of O 2 and/or CO 2 gas. These gases take part in the respiration of plants. We know that respiration involves the oxidatio
Measuring atmospheric pressure with a bicycle pump A bicycle pump with the washer reversed as represents can be used to calculate atmospheric pres- sure. The piston can be made
Notes
What minerals attract lightning? Ans) Big structures and things that are metal attract lightning, also trees do. In fact, anything that is metallic having mineral may seem
What is an example of the elements of the systems
Fire extinguishers You would recall the classification of fires dealt. Table summaries the type of extinguisher used for different classes of fire. Table: Summary of fire e
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