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A simple siphon
Secure two tall glass bottles and fill every about half full of water. Connect two 30cm lengths of glass tube with a 3~cm length of rubber or plastic tubing. Fill the tube with water and pinch it. Put a glass tube in every bottle of water. Siphon the water back and forth by varying the height of the bottles. The experiment is more attractive if the water is coloured with a little ink. Place the two bottles on a table. Does the siphon flow? Can you describe how air pressure helps the siphon work ?
Explain Hiccup reflex Actions - Respiratory Process It is also a reflex associated with stimulation of sensory endings in the gastrointestinal tract or other tissue through irr
Which will most likely form when a steep mountain stream flows abruptly onto a flat plain alluvial fan
Explain Brain or Detector - Mechanism of Colour Perception The fibre identification of colour takes place in the brain. If any of these four pre-requisites are not present, the
how foods are digested?
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Illustrate about the colour of the soil The colour of the soil gets influenced by the oxidation states of metal ions. Colours such as red, yellow and reddish brown are found u
An experiment with a floating candle Put a nail in the lower end of a candle. The nail should be just the right weight to make the candle float with its top a little above the
Explain the acid/base balance of our blood changes This acid/base balance of our blood changes in response to many things. These include: Diet: the diets that are rich in
Marasmus: This is caused due to the severe deficiency of both proteins and calories in the diet. Nutritional surveys among pre-school (1 to 5 years) children show that more t
Explain Cephalic Phase or Neural Phase 45% of the total gastric secretion is discharged in this phase. The flow of juice occurs before food reaches the stomach. Sight of food,
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