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How to make a simple vacuum pump
Secure a bicycle or automobile hand pump. Open the pump and delete the piston. Un- screws the bolt that holds the leather washers. Reverse the washers by turning them over. Change the washers on the piston and insert in the pump cylinder. A pump of this sort will serve to do a lot of simple vacuum experiments
Packaging and storage of oil Rancidity can cause the oil to deteriorate and develop off-flavors during storage. Using clean, dry containers, which exclude light and heat, and p
what is the space that takes up matter
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Adulteration of food: We live in a society where some times foods and even medicines are sold in an adulterated form by mixing it with other materials, which are neither food
explain the parts of the microscope
Will we ever go beyond The Milky Way?
Chemical reactivity : The substances which react violently or produce flame on contact with water can be given suitable chemical treatment to convert them into nonreactive form be
Observe the surface of the moon :- Use the small telescope or a pair of field glasses. Examine the surface of the moon and see if you can see any of its craters and mountains.
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
1.) Imagine that you are a particle inside an ice cube. You were placed into a glass of lemonade to cool it down. The lemonade has now been drunk and you have been left in the glas
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