Chapter 20: Simple Chemical Reactions - Science Mcqs for Grade 7


Q.  The conservation of mass is obtained when the total mass of reactants is equal to total mass of

a. products
b. molecules
c. protons
d. atoms


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Changes occur in matter at
Category: Science Mcqs,   Published by: teswesm
MCQs:  Due to less concentrated energy, the regions that are away from equator do not have much
Category: Science Mcqs,   Published by: teswesm
MCQs:  Regions close to equator round the year experience
Category: Science Mcqs,   Published by: teswesm
MCQs:  Planets are non luminous and revolve around the sun in elliptical
Category: Science Mcqs,   Published by: teswesm
MCQs:  Phases of appearance of moon are caused by the movement of moon around the
Category: Science Mcqs,   Published by: teswesm
MCQs:  The light of Proxima Centauri reaches the earth in
Category: Science Mcqs,   Published by: teswesm
MCQs:  Mankind refers to the
Category: Science Mcqs,   Published by: teswesm
MCQs:  At night, the planets Venus, Mars, Jupiter and Saturn can be seen with a
Category: Science Mcqs,   Published by: teswesm
MCQs:  During lunar eclipse earth blocks out the
Category: Science Mcqs,   Published by: teswesm
MCQs:  The earth spins on its own
Category: Science Mcqs,   Published by: teswesm
MCQs:  Rovers were the
Category: Science Mcqs,   Published by: teswesm
MCQs:  The time which sunlight takes to reach the earth is
Category: Science Mcqs,   Published by: teswesm
MCQs:  The shape of the 'moon' is
Category: Science Mcqs,   Published by: teswesm
MCQs:  The time which earth takes to complete its one revolution is
Category: Science Mcqs,   Published by: teswesm
MCQs:  After sun, the nearest star to earth is called
Category: Science Mcqs,   Published by: teswesm
MCQs:  Planets, moons, asteroids and stars are called
Category: Science Mcqs,   Published by: teswesm
MCQs:  The objects which give out light are called
Category: Science Mcqs,   Published by: teswesm
MCQs:  When sun is entirely or partially blocked out by moon, it is termed as
Category: Science Mcqs,   Published by: teswesm
MCQs:  A system which is made up of planets, asteroids and other objects orbitting the sun, is known as
Category: Science Mcqs,   Published by: teswesm
MCQs:  The heavenly bodies which revolve around the sun are called
Category: Science Mcqs,   Published by: teswesm