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Corrosive Substances : These substances cause severe damage by chemical action when in contact with living tissue or in case of leakage, destroy /damage other materials. Mineral acids like hydrochloric acid and sulphuric acid, sodium hydroxide belong to this class.
INTRODUCTION : Gas, Electricity and water are integral parts of any science laboratory. You would have realised from personal experience (if any) and in the course of your study o
To show that liquids exert pressure Connect two 15 cm lengths of glass tubing or two transparent plastic soda straws with a short length of rubber tubing and attach them to an
A hair hygrometer This device will enable you to read the relative humidity directly without the use of tables. Procure a few human hairs about 30 cm long. Free them from gr
Ultraviolet Radiations : The ultraviolet (UV) light has higher energy than visible light. Hydrogen lamps, deuterium lamps and other sources of ultra-violet are used for a variety
if a force of 26 n is exerted on two baLLS one with a mass of 0.52kg ands the other with mass of 0.78kg which ball will have the greater acceleration explain
What are Fatty acids Fatty acids are grouped into two classes, saturated and unsaturated fatty acids. The terms 'saturated' and 'unsaturated' fatty acid may not be new to yo
The difference between hard and soft water Collect some hard water from a stream(or make some as defined in the next experiment). Also secure some soft water like as rain wate
The developing brain is highly plastic in humans. The downside of this is that the developing human is, compared to other species, practically helpless and without any skills requi
informations about reproduction
adaptations of roundworms
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