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Lowing soap bubbles with hydrogen
Mix up a strong soap solution that will make good soap bubbles. Place a small funnel tube or a clay pipe on the delivery tube. When you have a good action of acid and zinc in the flask, blow bubbles with the hydrogen. When every bubble has been formed a slight jerk will detach it from the funnel and it will increase to the ceiling. You can have a lot of fun trying to light the bubbles by placing a lighted candle on the end of a stick to arrive at them near the ceiling
Visible and Invisible Radiation: Light is very much a part of our existence. Without it we cannot see; It Iends colour to the world around us. Light is also termed as visible
A simple mercury barometer Seal single end of a glass tube about 80 cm in length by rotating it in a gas flame. The tube should be held as almost vertical as possible. Join a s
what is ecology
Water Pollution Pollution of fresh water is one of the most serious environmental problems of the world as a whole. In our country most of the rivers and lakes are polluted
Explain Immunoblotting (Western blots) In this technique, different Ag (which may be viral proteins) is separated by electrophoresis in a solid phase They are subjected to ele
In the following table state how gymnosperms are adapted for living on land with respects to each of the following aspects Aspect Adaptation for living on land Alternation of Gener
On the day of the summer solstice in the Southern Hemisphere, the sun can be seen overhead at what location around the globe? At Tropic Of Capricorn
Explain Agglutination - Detection of Antigen-Antibody Interaction Agglutination - If Ag is present on the surface of cells, or can be made to coat these surfaces of cells, thes
State the Chemical and Physical processes of weathering The chemical and physical processes of weathering aid each other. A rock mechanically broken into smaller pieces exposes
Explain the Vasomotor Centre and Cardio-Inhibitory Centre The vasomotor centre (in the medulla ablongata) excites the respiratory centre. The pulmonary ventilation is increased
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