SHAMROCK PRERNA SCHOOL
Unit Test -II
Q1.Multiple Choice Question:- (2)
i)How many teeth does a child of age 3 have ?
ii)The hardest part of teeth is
iii)Which of these is made up of molecules ?
d) All of these.
iv) The distance between the molecules of which of these is the highest
d) All of these
Q2Write True of False (2)
i)Air is not a matter since we cannot see it.
ii)Solids and liquids have definite volume .
iii) Every time a tooth falls off, a new tooth grows in its place.
iv) Microbes that causes disease are called germs.
Q3.Name these :- (4)
i)The portion of a tooth above the gum.____________
ii) The doctor who treats your teeth .____________
iii) The solid that is dissolved in a solvent.___________
iv) Atoms combine in various ways to form them._________
Q4Mention any one disease each caused by the following:- (2)
Q5.What are each of these useful for? (2)
iii)Premolars and molars________________________________________
Q6.Answer the following questions . (8)
i)List two ways in which microbes are useful to us.
ii) Is air matter? Why ?
iii) Why do gases not have definite shape or volume ?
iv) What is matter made up of ?