STJOSEPHSENI
ORSECONDARYSCHOOL,
ARALVAI
MOZHI202122
UNI
TTESTI
I
Gr
ade:
VI
Ti
me:
1.
30hr
s
Subj
ect
:
Sci
ence
Mar
ks:
40
I
. Chooset
hecor
r
ectanswer
10×1=10
1.Thepr
ocessofchangi
ngofwat
eri
nt
oi
t
sv
apouri
scal
l
ed_
_
_
_
_
_
_
_
_
_
_
_
_
_
_.
a)Ev
apor
at
i
on b)condensat
i
onc)per
col
at
i
ond)pr
eci
pi
t
at
i
on
2.Ex
cessi
v
er
ai
nsmaycause_
_
_
_
_
_
_
_
_
_.
a)Cy
cl
one
b)f
l
ood
c)
dr
ought
d)t
aught
3. Thepr
ocessofchangi
ngwat
erv
apouri
nt
owat
eri
scal
l
ed_
_
_
_
_
_
_
_
_
_
_
_
_.
a)Ev
apor
at
i
on b)Condensat
i
on c)per
col
at
i
ond)pr
eci
pi
t
at
i
on
4. Whenabarmagneti
sbr
oughtneari
r
ondust
,
mostoft
hedustst
i
cks
(
a)neart
hemi
ddl
e
(
b)equal
l
yev
er
y
wher
e
(
c)neart
woends
(
d)att
hemi
ddl
eandends
5. Whi
chi
sanat
ur
al
magnet
?
(
a)Magnet
i
t
e (
b)Haemet
i
t
e (
c)Bakel
i
t
e
(
d)Copper
6. Whi
cht
woendsofamagnetar
ecal
l
edmagnet
i
cpol
es?
(
a)Nor
t
hpol
e(
b)Sout
hpol
e (
c)Nor
t
handsout
hpol
e (
d)Sel
fdemagnet
i
sat
i
on
7. Whi
chi
sabi
ot
i
ccomponentofenv
i
r
onment
?
(
a)Pl
ant
s.
(
b)Ani
mal
s.
(
c)Mi
cr
oor
gani
sms.
(
d)Al
l
oft
hese
8. Respi
r
at
i
oni
naquat
i
cani
mal
soccur
sby
(
a)l
ungs.
(
b)gi
l
l
s.
(
c)nost
r
i
l
s.
(
d)l
egs
9.Ther
emov
al
ofwast
esubst
ancesf
r
om t
hebodyi
scal
l
ed
(
a)r
epr
oduct
i
on.
(
b)r
espi
r
at
i
on.
(
c)br
eat
hi
ng.
(
d)ex
cr
et
i
on
10.Yakshav
eoneoft
hef
ol
l
owi
ngont
hei
rbodi
est
okeept
hem war
m.Thi
sonei
s
(
a)f
eat
her
s.
(
b)hai
r
.
(
c)scal
es.
(
d)shel
l
s
I
I
. Answert
hef
ol
l
owi
ng
1. Whendoesadr
oughtoccur
?
2.Whydoest
hewat
erspl
i
tont
hef
l
oordi
sappearaf
t
ersomet
i
me?
3.Wher
ear
epol
esofabarmagnetl
ocat
ed?
5×3=15
4.Abarmagnethasnomar
ki
ngst
oi
ndi
cat
ei
t
spol
es.Howwoul
dy
ouf
i
ndoutnearwhi
ch
endi
si
t
snor
t
hpol
ei
sl
ocat
ed?
5.Gi
v
eanex
ampl
eofanonl
i
v
i
ngt
hi
ngwhi
chshowsanyt
wochar
act
er
i
st
i
csofl
i
v
i
ngt
hi
ng.
I
I
I
.Ans
weri
nbr
i
ef
1.Howar
ecl
oudsf
or
med?
2.Wr
i
t
et
hef
eat
ur
esofdeser
tpl
ant
s.
3.Youar
egi
v
enani
r
onst
r
i
p.Howwi
l
l
y
oumakei
ti
nt
oamagnet
?
3×5=15