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Origins of Science: We have seen that the primitive human beings acquired different kinds of knowledge from the use of implements and tools, from cooking on fire. from huntin
explain the parts of the microscope
Explain Sympathetic - Nerves System Sympathetic, as the word suggests, means to sympathize. The body sympathizes during fight, flight and fright reaction. For example, have you
does air is conductor
To show that soil contains air:- Place some soil in a glass jar or bottle and slowly pour water over it. Observe the air bubbles that increase by the water from the soil.
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
Reflexes: It is of interest to know, that all sensory information does not have to go to the - brain before we can react to a stimulus. Our responses to certain stimuli
Discuss about the Hydrometer Method to determine soil Bouyoucos devised a simple and rapid technique using a specially designed hydrometer to determine sand, silt and clay cont
1. Define the cell theory. 2. Contrast the light microscope with the transmission electron microscope. 3. Describe the structure and function of the plasma membrane, chro
A bottle barometer A bottle, partially filled with water, is overturned with its neck under the surface of more water in a saucer. This is the device used as a chicken feeder,
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