Question Paper

Ideal Education Societys Union mellowed School English Medium 3rd & quaternate social unit Test-2010-11 Std-IXTime: ------------------------------------------------- Date: 21-2-2011Subject: General Science stigmatise:40 SECTION-A QIA)Fill in the blanks:(3) 1 Matter is neither _________nor ____________ in a chemical reaction. 2 Two or much(prenominal) elements combine to form_____________. 3 The____________ on unit surface play area is called pressure. 4 The buoyant draw out is greater if assiduousness is________________. 5 The SI unit of pressure is__________________. B)Write the formula of the future(a) compounds:(4) 1Sodium phosphate2) Calcium oxide 3 jet nitrate4) Ammonium hydroxide C)Write the molecular masses of the interest:(2) 1 Sulphuric Acid (H2SO4)2) Carbon-dioride (CO2) atomic masses: H=1, S=32, C=12, O=16 D)Complete the table:(2) Mass(K.G)| flock (m2)| Density (kg/m3)| 356| 175| | | 190| 04| QII)An swer the following:(4) 1 A glass of urine has an ice pulley be adrift in water. The water level and touches the rim of the glass. willing the water overflow when ice melts. 2A cellblock off of plastic is released under water. Will it sink or come up to the surface of water? Give Reason.

QIII)Write shortly notes on (any1):(3) 1 Applications of Archimedes principle 2 Buoyant force QIV)Solve:(2) organize pressure exerted by a rip off on a wooden plank if area of contact of the screw is 0.5 mm and its weight is 50N. OR Calculate relative tautness of a surface having density 10.8 X 10 kg/m3, if density of water is 10 kg/! m3. SECTION-B QIA)Fill in the blanks:(2) 1 proto(prenominal) chordata posses______________ for respiration. 2 Mammals are unisexual and...If you want to specialise a full essay, order it on our website: BestEssayCheap.com

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