CBSE CLASS 10 SCIENCE SAMPLE PAPER (1)

CBSE CLASS 10 SCIENCE SAMPLE PAPER

SECTION – A

1. Mention any one difference between pseudocoelomates and eucoelomates.

2. Complete the process flow to generate electricity based on the principle of
electromagnetic induction.

SECTION – B

3) (a). During the process of translation in protein synthesis, mRNA carries the
________ and tRNA carries the _________.

(b). What is mutation and give one example of a disease caused due to genetic
mutation?

4.
a). Mention two elements that are used as fuel in a nuclear reactor for the
production of electricity in a nuclear plant.
b). Complete the following process which describes the conversion of energy
from one form to another during the production of electricity in a nuclear
power plant.

5.
a). Mention any two sources of adult stem cell.
b.) Stem cell therapy is an advanced therapy that can be used to regenerate
blood cells in blood-related conditions like __________ and
__________.

OR

Fill in the blanks by interlinking the artificially-produced proteins using
biotechnology with the diseases that they treat. (Dwarfism, Factor VIII,
Interleukin, Anaemia)
a. Erythropoietin: ___________; ___________: Haemophilia
b. Somatostatin: ____________; ___________: Cancer

SECTION – C

6). Write a short note on Blue Revolution undertaken by the Government of India.

7). Mention the physical and psychological problems that arise in children due to
constant use of cell phones.

OR

Mention the role of hormones in menstrual cycle.
Nuclear
Energy
_______
Energy
Kinetic
Energy in
_______
Kinetic
Energy in
Turbine
Electrical
Energy

8). Draw and name the sequence of cell division in meiosis part 1.

9)  Mention and explain any three Acts enacted by the Indian Government in
order to protect environment.

10).Mention any three methods to prevent cyber-crime
.
11)
a). Explain any one method of asexual reproduction with examples.


12). What is biodiversity? What are different levels of biodiversity? State 4
measures to conserve biodiversity.

SECTION – D

13)
a). What is aerobic respiration, mention and explain briefly the three steps
involved in aerobic respiration?

b) Complete the missing elements in the flow of products formed during
oxidation of carbohydrates through aerobic respiration
.
17)

a) Draw a schematic representation of a solar photovoltaic station.

b) Explain the energy conversion that takes place in a photovoltaic cell.

18). Answer the following questions.
a) Draw and label the working of the modern landfill site and explain
following questions.
b) How are the landfill sites formed?
c.) Explain the functioning of the landfill site.
d). How are these landfill sites useful?

19.
a). What are the types of cell division?
b) Which type is described in the figure?
c.)Which type of cells divide by this type?
d.)What are the different steps involved in this process?
e.)Why is this type of cell division necessary?

20.
a). Which properties of metal helps in molding it into different shapes?
b). What is the natural form of copper? How it can be converted to copper?

21). Can we group elements based on their physical properties alone? If not,
explain with examples.

SECTION – E

22).Take Calcium Carbonate in a beaker. Add water to it. When you touch the
external portion of the beaker, what do you feel?

23).What happens when external heat energy is applied to Silver Bromide? What
type of reaction does it represent?

24).Take Sodium sulphate in a beaker and Barium chloride in another beaker.
Make aqueous solution of both the elements. What will happen when you mix
both the solutions?

25). Take a ribbon of Magnesium of length 3-4 cm. Rub it with Sandpaper and then
burn it using candle. What is the observation?

26).Rani while working in kitchen mistakenly took a hot pot unknowingly. What
happens if Rani’s body took this situation as a normal action than reflex
action?

27). Take a plant of Jasmine. Take one of the branches and cut the leaves of it and
with the help of knife, remove the outer layer of the stem of the branch and
fold it. Now sow the folded portion under the earth. What will you observe
after a month? What is this process called?

IF YOU WANT ITS  SOLUTION PAPER THEN COMMENT AND TELL ME