VI Standard - 6th - Science - Second Midterm Question Paper - Samacheer Kalvi
Second Mid-term Test
Class:VI Duration: 1.30 hrs
Subject: Science Total marks : 50
PART-A
I. Choose the correct answer 10 X 1 = 10
1) The unit of
heat is ____
a)
Newton b) Joule c) Volt d) Celsius
2) When an
object is heated , the molecules that make up the object
a) begin to move faster b) lose energy c)
become heavier d) become lighter
3) When ice
melts to form water ,change occurs in its
a) position b)
color c) physical state d) composition
4 ) Formation of
curd from milk is
a) a reversible change b) a fast change c) an irreversible change
d) an undesirable change
5) Air pollution
leading to acid rain is a
a) reversible change b) fast change c) reversible change d)
human made change
6) Out of the
following an example of a desirable change
a) rusting b) change of seasons
c) earth quake d) flooding
7) The unit of
measurement used for expressing dimension of cell is
a) Centimeter b)
millimeter c)
micrometer d) meter
8) The control
centre of the eukaryotic cell is found
in the cell
a) Cell wall b) nucleus c) vacuoles d) chloroplast
9) Most
organells in an eukaryotic cell is found in the
a) Cell wall b) cytoplasm c)
nucleus d) vacuole
10) one liter of water at 300c is mixed with one
liter of water at 500c ,the temperature of the mixture will be
a) 800c b) more than 500c c) 200c d) around 400c
PART-B
II. Answer any 10 questions from the following 10X2=20
11) What is temperature?
12) Make a list of electrical equipment’s at
home which get heat from?
13) Define slow change?
14) What is
solution?
15) Which type
of change is associated with germination of seed? Explain
16) Give three
examples of Eukaryotic cell
17) What are the
essential components of cell
18) Which one is
called as Area of movement?
19) Why cells
are called Building blocks of life?
20) Complete the analogy
a) Heat:Joule:: Temperature :___________
b) Ice cube :00c:: Boiling water
;______________
21) Match the following :
1) control
center - Cell membrane
2) Food producer - Mitochondria
3) Gate of nucleus - Nucleus
4)
Gate of the cell - chloroplast
5) Energy producer - Nuclear membrane
22) Arrange in correct sequence
1) Elephant, cow, Bacteria , Mango, Rose
plant
2) Hen’s egg , ostrich’s egg, Insects egg
PART-C
III) Answer any 4 questions from the following : 4X5=20
23) Explain
thermal expansion with suitable example
24) a)
Distinguish between Heat and temperature
b) What happen when paper is burnt?
25) Give one
example of each case that happens around you
a) slow and fast change
b) Reversible and irreversible change
c) Physical and chemical change
d) Natural and Man made change
26) Tabulate any
organelles and their function
27) Distinguish
between prokaryotic and eukaryotic cell
28) Identify any
four parts of plant cell
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