CBSE Class 5 Science Practice Worksheet Set 3

A. Hard words to learn:-
1. Reproduction
2. Vegetative
3. Grafting
4. Pollination
5. Structure
6. Germination
7. Spores
8. Transplantation
9. Dispersion
10. Explosion

B. Define:-
1. Agriculture: A branch of science that deals with the study of growing similar types of plants in large number.
2. Germination: A very small baby plant coming out of the seed.
3. Reproduction: Production of young ones of its own kind.
4. Embryo: Baby plant growing in the seed.
5. Pest: An organism that attacks the crop or stored grains.
6. Transplantation: A process of transferring seedlings or baby plants from nursery to main field.

C. Name the Following:-
1. An artificial method of developing plant- Layering/Grafting
2. In Grafting, the lower part is known as- Stock
3. An example of layering- Jasmine
4. Seedling is also known as- Baby Plant
5. Seed Cover which is not edible- Husk
6. In Grafting, the upper part is known as- Scion

D. Answer the Following Questions:-

Question. What do you mean by Vegetative Propagation?
Answer : Vegetative propagation is a form of reproduction in plants, where root stems or leaf can give rise to a new plant. Natural Vegetative Propagation and Artificial Vegetative Propagation are the two types or methods of propagation in plants.
a) Natural Vegetative Propagation- It includes propagation by:-
i.Roots
ii.Stems
iii.Leaves

b) Artificial Vegetative Propagation- It includes propagation throughi.
i. Stem Cutting
ii. Layering
iii. Grafting

Question. What is Seed Dispersal? Why is it important?
Answer : The process of spreading seeds to different places away from the parent plant s knows as dispersal of Seeds.
It is important to spread the seeds so that they can get enough sunlight, air, water and space to grow. Dispersal can be done by wind, water, animals or even by selfexplosion.

Question. Define Agriculture and list out the steps involved in agricultural process.
Answer : Agriculture is a branch of science that deals with the study of growing similar types of plants in a large number.
The main steps in Agriculture are:-
i. Preparation of soil by tilling and leveling.
ii. Sowing of seeds
iii. Manuring
iv. Irrigation
v. Inspection of Mature Crops(Weeding)
vi. Harvesting
vii. Threshing
viii. Winnowing
ix. Storing and Marketing the seeds

Question. Explain “Pollination”
Answer : The transfer of pollen grains from male part(Stamen) to the female part (Carpel) is known as pollination. There are 2 types of pollination which are as follows:-
a. Self Pollination: When the pollination is held winthin the same flower.
b. Cross-Pollination: When the pollination is held between two different flowers. 

Q.1 Fill in the blanks.

(a) ________, _________, ________and ________ are the agents of dispersal.

(b) A germinating seed needs _________, ________ and _________.

(c) New plants can grow from the leaves of the _________.

(d) A seed with two seed leaves is called a_________.

(e) Plants help to reduce soil _________.

(f) The outer covering of a seed is called ___________.

(g) Crops grown from June to October are called __________.

(h) _________ and _________ grow in clayey soil.

(i) The practice of growing plants on a large scale is called ___________.

(j) The development of a seed into a seedling is called __________.

Q.2 Put (✔ or (X) against each statement.

(a) Seeds having one seed leaf are called dicot seeds. ( )

(b) Plants provide us with wood, fibre, rubber, gum, tea and coffee. ( )

(c) Insecticides and pesticides are used to protect the crops from being destroyed by pests. ( )

(d) Crops grown in winters are called Rabi crops. ( )

(e) Seeds having two seed leaves are called monocot seeds. ( )

(f) Brinjal, pumpkin and gourd grow in summer. ( )

Q.1. Tick (√ ) the correct answer :-

1. This joint allows movement at the wrist and ankle.
a. ball and socket joint
b. gliding joint
c. pivot joint
d. hinge joint

2. Strong tissues that bind the bones at a joint are called.
a. tendons
b. bone marrow
c. ligaments
d) ribs

3. These muscles are not under our control
a. eye muscles
b. muscles attached to skeleton
c. cardiac muscles
d. a and c.

4. The vertebral column is made up of
a. 22
b. 33
c. 12
d. 2 bones

Q.2. Fill in the blanks

a. The rib cage protects the __________ and __________.

b. The soft spongy material found inside the cavities of long bones is called __________.

c. The vertebral column is made up of __________ bones and it protects the __________.

d. The __________joint allows movement only in one direction and is present in __________ and __________.

e. The joint which allows maximummovement is called __________. 

f. Among the __________ bones in the facial region only the __________ is movable.

g. The __________ is the longest bone in our body.

h. White blood cells are produced by the __________and fight __________.

i. The __________ joint helps in movement of head in different directions.

j. The joint which is present between any 2 vertebrae of the spine is __________.

k. Muscles are attached to bones by strong fibres called __________.

l. The muscles found in the heart are called __________.

Fill in the blanks.

  1. ________ is the uppermost layer of the earth.

  2. River Kosi caused havoc in ___________

  3. The protection of soil against erosion is called _________

  4. Felling trees in large numbers is called ___________

  5. Carrying away of soil by the action of water or wind is called ___________

  6. ___________ may lead to soil erosion.

  7. Plants and trees hold the soil together by their __________

  8. Earth Day is celebrated every year on __________

  9. The Hwang Ho river which changes its course every year is in _____________

  10. _____________ is the foundation of all life on earth.

Q.1 FILL IN THE BLANKS

1. We apply muscular force when __________________.

2. A rolling ball stops after sometime because of the ____________.

3. Simple machine either changes the __________ or __________ the force applied.

4. Two types of pulley are _________ and ______.

5. _________ pulleys along with _____________ are used to lift loads.

6. The purpose of pulley is to _____________.

7. A wheel with a rod attached to it is known as _______________.

8. ____________ is a simple machine used to hold things tightly together.

9. Bigger screws called __________ are used to lift cars and other heavy objects.

10.____________ is the ability to do work.

11._____________ is the energy which is possessed by an object due to its motion or due to its position.

12.A drawn bow possesses mechanical energy due to its _____________.

13.___________ absorbs the energy of the sun to provide heat for cooking.

14.___________ is the conversion of wind energy into a useful form such as electricity, using wind turbines.

15.Sound is _____________ transmitted through solid liquid or gas.

16.___________ force arises when a body deforms

17.Levers can be classified according to the position of the _________ , ________, and ___________.

Q.2 Give e.g. of:-

a) Frictional force.

b) Elastic force

c) Mechanical force

d) Buoyant force.

e) First class Lever

f) Second class Lever

g) Third class lever

Q 1 Give one word for the following:

  1) An object which revolves around a planet. ________

  2) Pieces of rocks which create craters by falling on the moon. __________

  3) Man – made objects which revolve around the earth just as the moon does. ____________

  4) Earth`s closest neighbor in space. ___________

  5) Only natural satellite of the earth. _______________

  6) These are caused in the seas and oceans by the gravitational pull of the moon. ____________

  7) First artificial satellite launched by India. ____________

  8) A person who goes into space. __________

  9) An astronaut who stepped on the moon with Neil Armstrong. _____________

  10) The eclipse caused when the moon is completely in the dark shadow of the Earth. ________________

Q2 define

a) Satellite

b) Opaque object

c) Communication satellites

Q1) Define

Space, Satellite, Eclipse, Tides, Artificial Satellite

Q2) Name

  1) Earth’s closest neighbour’s and the only natural Satellite

  2) India’s first unmanned spacecraft to moon

  3) The surface of the moon is covered with _______ , __________ and huge ______

  4) The first astronaut who stepped on moon

  5) A person who goes to space

  6) First man to go to space

  7) Four artificial satellites launched by India

  8) Name Indian’s who have travelled to space

  9) Satellites which take picture of the movement of clouds and help us forecast the weather

Q3) Fill ups

  a) The object through which light does not pass is called ________

  b) _________ was the first satellite launched by India in 1975

  c) Satellites which send messages from one country to another are called _________ satellites

  d) High tides are caused by attraction between _____ and _________

  e) Zhai Zhigang of china remained suspended in space for about _____ minutes

  f) The craters on the surface of the moon are formed by pieces of rocks _____

  g) The moon is about _______ km away from the earth

  h) Different shapes of the moon are called its _________