Subject: Science Time:
3 hrs
Class: 06 Marks: 100
Question No. 1:
A. Encircle the correct options. (10)
i.
The power houses
of the cell are:
(Mitochondria, vacuoles, chloroplast, centriols)
ii.
Hear, liver and
ears are examples of animal:
(organs, tissues, cells
, systems)
iii.
The most
sensitive part of our eye is;
(retina, cornea, pupil, lens)
iv.
Respiration
takes place in the element of cell:
(chloroplast, mitochondria,
nucleus, cell
membrane)
v.
Organisms that
feed on plants directly or indirectly are called:
(producers, predators, prey, consumers)
vi.
Which substance
is a compound:
(carbon, chlorine, sodium chloride, sodium)
vii.
Which gas is
considered as life supporting?
(argon, nitrogen, hydrogen, oxygen)
viii.
When we come
down the stairs we lose:
(kinetic energy, potential energy, sound energy, heat energy)
ix.
The chain of
your bicycle is:
(pulley, lever, screw, wheel and
axel)
x.
Light reflects
regularly from a surface which is :
(opaque and
rough, rough, black, smooth and shiny)
B. Write
the
proper term/word against each statement. (10)
i.
To see small
things are, we use ___________________
ii.
Wheel and axel,
pulley, gear. __________________
iii.
Energy coming
from the sun___________________
iv.
The gas that
makes up about 21% of air________________
v.
The matter
consisting of only one kind of atoms___________________
vi.
An animal that
is killed by a predator____________________
vii.
Green pigment in
plants______________________
viii.
Present on our
tongue__________________
ix.
The hole in the
middle of the iris___________________
x.
A group of
different tissues which work together__________________
Question No. 2: Answers to any ten
of the following questions. (10×5=50)
a)
Define cell,
tissue, organ and system?
b)
What is the
importance of our tongue?
c)
What happens to
pupil of our eyes when we switch the lamp on?
d)
How does
respiration occur in plants?
e)
What would
happen if there were no carbon dioxide in air?
f)
Differentiate
between biotic and abiotic factors of environment.
g)
Why are animals
said to be consumers instead of producers?
h)
What do you know
about sublimation and distillation?
i)
Why is water said
to be a compound instead of an element?
j)
Write some uses
of oxygen in our daily life.
k)
How would air
composition change if there were no plants?
l)
What is the
difference between kinetic energy and potential energy?
m)
Describe two
kinds of pulley and their work.
Attempt any
three questions from the following.
Question No. 3: Draw, label and write the difference
between animal and plant cells. (10)
Question
No. 4: Write the symbols of the following elements. (10)
Sodium, Calcium, Lead, Copper,
Zinc, Mercury, Carbon,
Oxygen, Sulphur, Aluminum
Question
No. 5: a. Define and explain law of conservation. (5)
b. What is a simple machine? Write the names of five
simple machines.
Question
No. 6: Make concept map using the given information about the relationships
among living organism. (10)
Broadening Horizons