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CBSE Class 9 Science Worksheet

1.
State true or false: Naphthalene is soluble in water.
A) true B) false
2.

Weight can be referred as

A)

Mass

 B)

Volume

 C)

Length
3.

What is kinetic energy?

A)

Particles of matter are continuously moving. This characteristic is called kinetic energy

 B)

Particles have space between them. This characteristic is called kinetic energy
4.
Which of the following organelle contains DNA?
A) Endoplasmic reticulum B) Golgi Complex C) Lysosomes D) Mitochondria
5.
Who first proposed that an atom consists of a positively charged sphere and the electrons are
embedded in it?
A) James Rutherford B) J J Thomson C) John Dalton D) Neils Bohr
6.
Why are the plants like Pinus and Deodar called gymnosperms?
7.
Choose the correct option: Red Sindhi and Sahiwal are breeds of _________.
A) Buffaloes B) Pigs C) Broilers D) Cows
8.
Choose the correct option: SI unit of volume is __________.
A) cubic cm B) cubic meter C) liters D) meter
9.
Fill in the blanks: Organisms which lack nucleus and membrane bound organelle are called _______________.
10.
Fill in the blanks: The cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell is __________.
11.
State True or False: Nucleoid is present inside the nucleoplasm of the eukaryotic nucleus.
A) TRUE B) FALSE
12.
Choose the correct option: Two bodies of masses 8 and 2 kg have equal kinetic energies. Then the ratio of their momentum is __________.
A) 1:2 B) 2:1 C) 1:4 D) 4:1
13.
What is the time taken by 50W bulb to consume 1500J of energy?
14.

 Energy can 

A)

be created but can not be destroyed

 B)

not be created but can be destroyed

 C)

neither be created nor be destroyed

 D)

be created can be destroyed
15.
State Archimedes’ principle.
16.
Which of the following is the only non metallic liquid element at room temperature?
A) Chlorine B) Iodine C) Bromine D) Sodium
17.
Which of the following group is triploblastic?
A) Arthropoda B) Annelida C) Mollusca D) Echinodermata
18.
Isotope of which element is used in the treatment of cancer ?
A) Iodine B) Uranium C) Cobalt D) Nickel
19.
State True or False: Both Monera and Protista may be autotrophic and heterotrophic.
A) TRUE B) FALSE
20.
Choose the correct answer:  What is the site of ribosome formation in living cells?
A) Endoplasmic reticulum B) Chloroplast C) Golgi Complex D) Nucleolus

CBSE Class 9 Science Worksheet

Answers

1.
Option B
2.
Option A
3.
Option A
4.
Option D
5.
Option B

6.
Because plants of this group bear naked seeds and are usually perennial, evergreen and woody.
7.
Option D
8.
Option B

9.
prokaryotes
10.
Smooth endoplasmic reticulum
11.
Option B
12.
Option B

13.
30s
14.
Option C

Solution:

Law of Conservation of Energy states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another. For example, turning on a light would seem to produce energy; however, it is electrical energy that is converted to light.


15.
As per it the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces. .
16.
Option D
17.
Option D
18.
Option C
19.
Option B
20.
Option D
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