SA2SETIISCI0713QP SUMMATIVE ASSESSMENT II ( 2013-2014) 26/02/14
SUBJECT: SCIENCE SET 2 Max. Marks: 90
GRADE: VII Time: 2 ½ hours
Name: Section: Roll No:
General Instructions:
All answers to be written in the answer sheet provided.
This question paper consists of 5 printed pages.
Section A
I Fill in the blanks (10x1=10)
1. A chemical reaction in which heat is absorbed is called ____________________
reaction.
2. A spherical mirror with its reflecting surface on the outside is a
______________.
3. _______________ is the liquid part of the blood.
4. _______________ is the first cell of a new organism.
5. _______________ are the tiny filtering units of the kidney.
6. The process of depositing a layer of zinc on iron to prevent rusting is
called _______________.
7. A _______________ mirror produces a laterally inverted image.
8. Transportation of nutrients in unicellular organisms occur by
_________________.
9. ___________________ gas turns lime water milky.
10. ______________ is a sweet liquid usually present at the base of
flowers.
II. Match the following (5x1=5)
1. Convex mirror a. Capillaries
2 Fragmentation b. Cutting
3. Crystallization c. Virtual image
4. Thinnest blood vessles d. Alum
5. Sugarcane e. Spirogyra
1._______ 2. _______ 3. ________ 4. ________ 5.________
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III. Multiple choice questions (15x1=15)
1. Zygote is related to ______________ reproduction.
a) sexual c) vegetative
b) asexual d) budding
2. White light consists of __________ colours.
a) five b) three
c) seven d) four
3. Newton showed that a __________ can produce spectrum.
a. plane mirror c. prism
b. convex mirror d. concave mirror
4. Fusion of male cell and egg cell is called __________.
a. pollination c. transpiration
b. fruit formation d. fertilization
5. Which is not a method of artificial propagation?
a. Grafting c. Cutting
b. Budding d. Layering
6. Concave mirrors are used to convert ___________ energy into heat
energy.
a. solar c. chemical
b. electrical d. wind
7. Which of the following reproduces by budding?
a. Spirogyra c. Ferns
b. Yeast d. Moulds
8. Which mirror is used by a dentist to see a magnified image of teeth?
a. Plane mirror c. Convex mirror
b. Piece of glass d. Concave mirror
9. Which of the following develops into seed?
a. Ovary c. Ovule
b. Pollen d. Stigma
10. Image formed by a plane mirror is ___________.
a. real c. inverted
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b. erect d. diminished
11. The parts of plants that give rise to new plants contain ___________.
a. meristematic tissue c. sperm
b. reproductive tissue d. egg cell
12. An object is placed 1.5m in front of a plane mirror. Where is its
image formed?
a. On the surface of the mirror c. 1.5m in front of the mirror
b. Just behind the mirror d. 1.5m behind the mirror
13. Which of these is the female reproductive organ in plants?
a. Stamen c. Thalamus
b. Sepal d. Carpel
14. Band of which of these colour is not seen in a spectrum?
a. Violet c. Pink
b. Red d. Blue
15. Which of the following is grown by cutting its swollen roots into
parts and planting them into soil?
a. Potato c. Sweet potato
b. Gladiolus d. Onion
SECTION B
IV. Define the following (3x2=6)
1. Dialysis
2. Spectrum
3. Oxidation reaction
V. Differentiate the following (4x4=16)
1. Ascent of sap and translocation(2 points of differences)
2. Concave mirror and convex mirror(2 points of differences)
3. Sexual reproduction and asexual reproduction(2 points of
differences)
4. Exothermic reaction and endothermic reaction(1 point of difference
and 1 example in the form of chemical equation)
VI Give reasons (4x2=8)
1. We should not put stainless steel spoon in a pickle jar.
2. Convex mirrors are used as rear view mirrors in vehicles.
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3. Wind pollinated flowers have either small petals or no petals.
4. White blood cells are said to be ‘soldiers of the body’.
VII Short answer questions (5x2=10)
1. Write any 2 characteristics of image formed by a plane mirror.
2. Name one vegetative and one reproductive part of a plant.
3. List any two characteristics of chemical reactions.
4. Transport/vascular system of plants consist of which two vessels?
5. After pollination and fertilization in a flower, most often all the parts
of the flower fall off except one. Which is this part? What does it
develop into?
VIII Diagram based questions (1x10=10)
1. Observe the following experiment and answer the questions:
(i) (ii)
(a) The experimental setup (i) is used for laboratory preparation of (1+1=2)
which gas? What will be the effect of that gas on lime water?
(b) Which property of the gas is seen in setup (ii)? 1
2. Identify the method of artificial propagation in each of the following (1+1=2)
and name one plant grown by each method.
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(a) (b)
3. Name the labeled parts of the heart. Write the function of part D. (2+1=3)
4. Identify the type of Chemical reaction in each of the following: (1+1=2)
(a)
(b)
IX Draw the following diagrams. (10)
1. Draw a labeled diagram of human urinary system. Write the function (4+1=5)
of the main organ of this system.
2. Draw a labeled ray diagram to show the principal focus and focal (2+1=3)
length of a concave mirror.
3. Draw a diagram to show budding in Yeast. (2)
OR
Draw a diagram to show fragmentation in Spirogyra.
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