November, 2017 - Online tutorials

ICSE 7th – Chemistry- Air, Oxygen and Oxides- Test Paper

November 20, 2017November 20, 2017
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7th ICSE Chemistry Chemistry ICSE Science Test paper

Fill in the blanks(5 marks) The molecular formula of Oxygen is ____________ Percentage Composition of carbon dioxide in air is ___________ In preparation of oxygen the catalyst used is ____________…

CBSE 8th Science- Chapter – Force and Pressure- Notes

November 3, 2017
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8th CBSE Science

What is force? Push or pull on an object is called force. Conditions for force to act: At least two objects must interact for a force to come into play….