Year plan - CLASS VIII (SCIENCE)

CLASS VIII
CBSE BOARD
YEAR PLAN / UNIT PLAN
CHAPTER - FORCE AND PESSURE
SCIENCE

1. 1


YEAR PLAN: 2020-2021
Subject: Science
Class: VIII
INDEX

Sr. No. Topics Page No.

1 Year Plan 3
2 Unit Plan 5
3 Weightage Table 8
4 Blue Print 10
5 Unit Test 11
6 Scoring Key & Marking
Scheme
13

2. 2

YEAR PLAN: 2021-2022
Subject: Science Std: VIII Total Periods Available: 150


Sr.
No.



Content (Units)
Objectives Periods
required



Total
Knowledge

Understanding

Application

Skill

For
Teaching

For Testing

1 CROP PRODUCTION AND
MANAGEMENT
A B A B 6 1 7
2 MICROORGANISMS: FRIEND AND
FOE
A B B B 7 2 9
3 SYNTHETIC FIBRES AND PLASTICS A B C C 6 2 8
4 MATERIALS: METALS AND NON-
METALS
A A B B 6 2 8
5 COAL AND PETROLEUM A A B B 6 1 7
6 COMBUSTION AND FLAME B A C B 6 1 7
7 CONSERVATION OF PLANTS AND
ANIMALS
A A A B 6 2 8
8 CELL — STRUCTURE AND
FUNCTIONS
A C B B 5 2 7
9 REPRODUCTION IN ANIMALS B B B C 6 2 8
10 REACHING THE AGE OF
ADOLESCENCE
B B B B 5 1 6
11 FORCE AND PRESSURE A C B B 5 2 7
12 FRICTION A B B A 5 1 6
13 SOUND A A B A 6 2 8
14 CHEMICAL EFFECTS OF ELECTRIC
CURRENT
B A A A 5 2 7
15 SOME NATURAL PHENOMENA C A C B 5 1 6
16 LIGHT B B B A 6 2 8
17 STARS AND THE SOLAR SYSTEM C B C B 6 2 8
18 POLLUTION OF AIR AND WATER B B A B 5 2 7

3. 3


Activities
19 Project - - - - 4 - 4
20 Quiz - - - - 2 - 2
21 Case Study - - - - 2 - 2
22 Debate - - - - 2 - 2
23 laboratory Activities - - - - 2 - 2
24 Field Trip - - - - 2 - 2
25 Club Activity - - - 4 - 4

Total 150

4. 4

UNIT PLAN: 2020-2021
Subject: Science Class: VIII
Topic: Force and pressure No. of periods: 2
Content
Analysis
Objectives with
specifications
(Learning outcome)
Teaching Learning
Process
Evaluation
Procedures
Period 1
(Introduction,
11.1, 11.2)

11.1 Force
A push or a pull
on an object is
called a force.

 Identifying
actions as
push or
pull
(pushing/
pulling/picking/
hitting/lifting/
lowering/flying/
kicking/
throwing/shuttin
g/ flicking)

11.2 Forces are
due to an
interaction
(An interaction of
one object with
another object
results in a force
between the two
objects.)
Knowledge
 The pupil
recall how
we can
decide
whether an
object is
moving
faster than
the other.
 The pupil
define force.
 The pupil
lists different
types of
forces.
Understanding
 The pupil
understand
that push
and pull are
forces.
 The pupil
identifying
actions as
Push or Pull
Application
 The pupil
writes
description
 Teacher ask questions
to the students.
Do you recall how we can decide
whether an object is moving
faster than the other?
What does the distance moved
by an object in unit time indicate?
Have you ever wondered what
makes an object slow down or go
faster, or change its direction of
motion?
What do you do to make a
football move?
What do you do to make a
moving ball move faster?
How does a goalkeeper stop a
ball?
 Teacher explain the
force is a push or a pull
Actions like picking, opening,
shutting, kicking, hitting, lifting,
flicking, pushing, pulling are often
used to describe certain tasks.
Each of these actions usually
results in some kind of change in
the state of motion of an object.
 Teacher provide list of
different situations and
tell them to identify
action.
Action can be grouped as a push
or pull.
Objective type
questions:
-Fill in the
blanks
-Match the
columns
-True or False
- One-word
answers
Understanding:
=>Short answers
type:
-Distinguish
between
-Short notes
=> Essay type
questions
Application:
State with
reason whether
the statement is
true or false.
Activities:
- Identifying
Actions

5. 5

of different
situation.

1. Moving a book placed on a
table 2. Opening or shutting a
door
3. Drawing a bucket of water
from a well
4. A football player taking a
penalty kick
5. A cricket ball hit by a batsman
6. Moving a loaded cart
7. Opening a drawer
 Teacher explain forces
are due to an
interaction by asking
questions and giving
examples.
A man standing behind a
stationary car, A car being pushed
by a man.
Can you decide who is pulling and
who is pushing in these cases? In
Fig., both the girls appear to push
each other while the pair of girls
in Fig. are trying to pull each
other.

Period 2
(11.3, 11.4)
 Exploring
forces
Forces applied on an
object in the same
direction add to one
another.
 Difference
between
two forces
If the two forces act in
the opposite
directions on an
object, the net force
acting on it is the
difference between
the two forces.
 Magnitude
Knowledge
 The pupil
define
magnitude.
 The pupil
defines state
of matter.
 The pupil
describes
exploring
force.
Understanding
 The pupil
understands
the force can
change the
 Teacher perform
activity and ask
questions based on
it.
Can you move it?
Now ask one of your friends to
help you in pushing it in the same
direction. Is it easier to move it
now? Can you explain why?
Now push the same object, but
ask your friend to push it from
the opposite side. Does the
object move?
 Teacher explains
difference between
the two forces
Forces applied on an object in the
same direction add to one
Objective type
questions:
-Fill in the
blanks
-Match the
columns
-True or False
- One-word
answers
Understanding:
=>Short answers
type:
-Distinguish
between
-Short notes

6. 6

The strength of a
force is usually
expressed by its
magnitude.
Also, if the direction
or the magnitude of
the applied force
changes, its effect
also changes.
 State of
motion
The state of motion of
an object is described
by its speed and the
direction of motion.
The state of rest is
considered to be the
state of zero speed.
An object may be at
rest or in motion;
both are its states of
motion.
 A force can
change the
state of
motion
A change in either the
speed of an object, or
its direction of
motion, or both, is
described as a change
in its state of motion.
Thus, a force may
bring a change in the
state of motion of an
object.






state of
motion.
 The pupil
explains
Exploring
force.
 The pupil
explain
difference
between two
forces.
Application
 The pupil
writes the
effect of
forces on
state of
motion.

another. If the two forces act in
the opposite directions on an
object, the net force acting on it
is the difference between the two
forces.
 Teacher explains
about magnitude
So, we learn that a force could be
larger or smaller than the other
or equal to each other. The
strength of a force is usually
expressed by its magnitude. We
have also to specify the direction
in which a force act. Also, if the
direction or the magnitude of the
applied force changes, its effect
also changes.
 Teacher tell
students to
perform an activity
and based on it ask
questions.
Take a rubber ball and place it on
a level surface such as a table top
or a concrete floor. Now, gently
push the ball along the level
surface.
Does the ball begin to move?
Push the ball again while it is still
moving. Is there any change in its
speed? Does it increase or
decrease?
 Tr explain the state
of motion
The state of motion of an object
is described by its speed and the
direction of motion. The state of
rest is considered to be the state
of zero speed. An object may be
at rest or in motion; both are its
states of motion
=> Essay type
questions
Application:
State with
reason whether
the statement is
true or false.
Activities:
- Identifying
Actions

7. 7

WEIGHTAGE TABLE: 2020-2021
Subject: Science Std: VIII
Unit: Force and pressure Total Marks: 20
Table No. 1
Weightage to objectives
Sr. No. Objectives Percentage Marks
1 Knowledge 20 4
2 Understanding 35 7
3 Application 40 8
4 Skill 5 1
Total 100 20

Table No. 2
Weightage to Sub-Units (content)
Sr. No. Sub-Units Percentage Marks
1 Force 30 6
2 Forces are due to an
interaction
5 1
3 Exploring forces 15 3
4 Difference between
two forces
5 1
5 Magnitude 15 3
6 State of motion 15 3
7 A force can change
the state of motion
15 3
Total 100 20

8. 8

Table No. 3
Weightage to Item Formats

Sr. No. Item Formats Percentage Marks

1 Essay type 20 4
2 Short answer type 50 10
3 Objective type 30 6

Total 100 20

Table No. 4
Weightage to difficulty level

Sr. No. Type of difficulty Percentage Marks

1 Easy 45 9
2 Average 35 7
3 Difficult 20 4

Total 100 20

9. 9

BLUE PRINT: 2020-2021

Subject: Science Std: VIII
Unit: Force and pressure Total Marks: 20







BLUE PRINT

Sr.
No.
Sub – Units Knowledge Understanding Application Skill
Total
E S O E S O E S O E S O

1 Force 2 - - - 2 - - - 2 - - - 6
2 Forces are due to an
interaction
- - - - - - - - - - 1 - 1
3 Exploring forces - - - - - 1 - 2 - - - - 3
4 Difference between two
forces
- 1 - - - - - - - - - - 1
5 Magnitude - - - - - 1 2 - - - - - 3
6 State of motion - 1 - - 2 - - - - - - - 3
7 A force can change the
state of motion
- - - - 1 - - - 2 - - - 3

Total 4 7 8 1 20

10. 10

UNIT TEST: 2020-2021
Subject: Science Std: VIII
Unit: Force and pressure Total Marks: 20

• All Question are compulsory
• Time allotted is 30 Minutes

Q 1) Multiple Choice Questions (tick the correct option)
[objective] [3M]
1) What is force?
a. pull
b. push
c. push and push both
d. none of these

2) What is state of motion?
a. position of rest
b. position of motion
c. both by the state of rest or motion
d. none of these

3) The strength of force is expressed by?
a. weight
b. mass
c. magnitude
d. longitudinal force

Q.2) Fill in the blanks in the following statements.
[objective] [3M]
(a) To draw water from a well we have to ______ at the rope.

(b) To move a loaded trolley, we have to ______ it.

(c) The north pole of a magnet _______ the north pole of another
magnet.

11. 11

Q 3) Answer in one sentence (Any Four)
[4M]
1) Why do the shape and size of a balloon change when filled with
air or water?
2) Name the quantity whose unit is Newton.
3) When a ball is dropped from a height, its speed increases
gradually. Name the force which causes this change in speed.
4) Give one example where force changes the shape of an object.
5) A blacksmith hammers a hot piece of iron while making a tool.
How does the force due to hammering affect the piece of iron?

Q.4) Answer in three or four sentences (Any Four)
[10M]
1) Define ‘state of motion’ of an object. Name the agent which can
change the state of motion of an object.
2) Give two examples of situations where you push or pull to
change the state of motion of objects.
3) What is meant by saying that force is due to an interaction? Give
an example to illustrate your answer.
4) In a tug of war, when the two teams are pulling the rope, a stage
comes when the rope does not move to either side at all. What can
you say about the magnitudes and directions of the forces being
applied to the rope by the two teams at this stage?
5) What is force? State the various effects of force.
6) Write
a) Give one example where force moves a stationary object.
b) State one example where force stops a moving object.

12. 12

SCORING KEY AND MARKING SCHEME
2020-2021

Question
Number
Sub
Question
Answer Mark


Q.1
1 c. Push and push both 1
2 c. Both by the state of rest or motion 1
3 c. Magnitude 1


Q.2
1 Pull 1
2 Push 1
3 Repels 1








Q.3

1
The shape and size of the balloon
change when filled with air or
water because they occupy space
resulting in change in shape.

1
2 Newton is a unit of force. 1


3
Gravitational force acts on the
ball.
Every object in the universe is
affected by the gravitational
force.


1

4
The flattening of dough ball into
a thin sheet with the help of
rolling pin.

1

5
The force due to hammering
causes the change in the shape of
the iron and iron can be moulded
in the shape of the required tool.

1

13. 13













Q.4


1
The state of motion of an object
is defined as the speed which is
acquired by the object in a
particular direction.
Force is responsible for the
change in the state of motion of
an object.


2
2 a) Pushing a toy car forward
b) sliding book on the table
2


3
Force is due to an interaction
means that force can exist only
when two objects come in contact
with each other.
Example is moving the carom
coin with a striker which results
in the motion of the coin.


2

4
This happens when both the
teams are applying equal amount
of force such that the force from
both the sides get cancelled.

2


5
A force is defined as the push or
pull experience by an object.
Following are the various effects
of force:
a) Results in change of shape
b) Results in change of direction
c) Results in change in position


2
6 a) Pushing a box
b) Applying brakes of car
2