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Air expands when heated
To show that air expands when heated, fit an electric light bulb flask or a bottle with a single- whole stopper or cork which has a 30-cm length of glass tubing or a soda straw by it. Place the end of the tube in a small bottle of water. Heat the flask and view what happens. Heat the flask until a considerable amount of air has been separated and then cool the flask by pouring cold water over it or by rubbing with a piece of ice.
State about the Soil Aggregation and Soil Structure In the context of soils the term 'structure' refers to the shape that the soil takes. It may exist as individual particle or
How did the Earth form and become spherical? The Earth's Shape : About five billion years ago the solar system was forming from gases and dust floating in space. Gravity, th
Blowing soap bubbles Soap films and bubbles serve very well for observations on surface tension. You can make a good soap bubble solution by placing three level tablespoonfuls o
Objectives After studying this unit, you should be able to: 1. explain the need for reporting lab accidents, 2. state the accident reporting procedure, 3. list the
Objectives After completing this exercise you will be able to: 1. Sterilize and dispose off microbial cultures, 2. Dispose off the carcass of laboratory animals and the e
describe the factors which decide the broad area of scientific activity
For water immiscible/insoluble liquid/solid wastes which can be emulsified The spillage of water immiscible/insoluble liquid/solid could be scrubbed with brush in presence of
Fractures : It is not our intention to introduce you to many types of fractures that can occur or all the ways a first aider might deal with them. The essential thing is that you
What is Classic Technique of Recipient Operation ? In this method, portions of left and light atria of both recipient and donor are retained. There is more atrial tissue of rec
Determine the Hormone Secreted From the Parathyroid Gland The parathyroid gland secretes parathormone. The amount secreted is strongly influenced by the level of calcium in the
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