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Worksheets

LET'S REVISE !!!

Total questions: 35

Worksheet time: 19mins

Name
Class
Date
1.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
2.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
3.

When you increase your depth under water, the water pressure on your body

a)

increases

b)

decreases

c)

stays the same

4.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
5.
The SI Unit of force is
a)
Pascal
b)
Meter/second
c)
Newton
d)
kg
6.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
7.
Tick the correct option :
Acrylic fiber is
a)
is man made fiber
b)
it is soft and light weight
c)
it is artificial wool
d)
All of the above
8.
Nylon is not used for making
a)
ropes for climbing
b)
blankets
c)
parachutes
d)
seat belts in cars
9.
Electrical switches are made up of
a)
melamine
b)
bakelite
c)
PVC
d)
polythene
10.
It is not advisable to wear clothes made of synthetic fibre while working near fire because 
a)
They are uncomfortable in those works
b)
They melt on heating and cause heavy burns
c)
They do not absorb moisture
d)
They are shiny and lustrous.
11.

Pickles are stored in plastic bottles mainly because they are:

a)

non-biodegradable

b)

good insulators

c)

durable

d)

non-reactive

12.

Name the plastic used for making water pipes

a)

Polythene

b)

PVC

c)

Acrylic

d)

Bakelite

13.

Cooking pans have plastic handles because

a)

They are light, durable and strong

b)

They are non- reactive

c)

They are poor conductors of heat and electricity

d)

They do not catch fire

14.

Polythene which is used to make polythene bags is an example of a ________.

a)

Thermoplastics

b)

thermosetting plastics

15.

Nozzle with many tiny holes through which liquid fiber-forming solutions are forced to form manufactured filaments of synthetic fibres.

a)

wicking

b)

spinneret

c)

denier

d)

generic groups

16.

IDENTIFY THE PLOUGH FROM THE FOLLOWING FIGURES

a)
b)
c)
d)
17.

WHICH OF THE FOLLOWING IS NEITHER KHARIF CROP NOR RABI CROP?

a)

PADDY

b)

WHEAT

c)

MAIZE

d)

WATERMELON

18.

THIS INSTRUMENT IS USED FOR

a)

HARVESTING

b)

CUTTING

c)

IRRIGATION

d)

TILLING

19.

SPECIFY THE PICTURE WHICH HELPS IN SOWING OF SEEDS

a)
b)
c)
d)
20.

Weeds can be defined as

a)

Useful plants present in the field

b)

Undesirable plants present in the field

c)

Plants that cannot be used at all

d)

Undesirable insects present in the field.

21.
What does NPK stand for?
a)
Nutrients, Pancakes, Kittens
b)
Nitrogen, Phosphorus, Potassium
c)
Nitrogen, Potassium, Phosphorus
22.
Threshing is a process of
a)
Separating grains from the stalk
b)
 preparing soil for sowing seeds
c)
collecting crops from the field
d)
removing undesired plants from the crop field
23.

VERMICOMPOST IS A

a)

FERTILISER

b)

PESTICIDE

c)

MANURE

d)

NONE OF THESE

24.

Transplantation is done in the case of

a)

Wheat

b)

Paddy

c)

Maize

d)

Barley

25.

A group of microorganisms that have the characters of both living and non-living are —

a)

Virus

b)

Bacteria

c)

Protozoa

d)

Fungi

26.

The organic substance obtained from dead plants and animal wastes is

a)

Manure

b)

Fertilizer

c)

Irrigation

d)

Agriculture

27.

A biological control uses a

a)

Predator to control a pest

b)

Pest to control a predator

28.

Grains can be stored on a large-scale in structures called

a)

Silos

b)

Granaries

c)

Both Silos and Granaries

29.

The process of removiing the husk from the grain is called________

a)

Winnowing

b)

Harvesting

c)

Threshing

d)

Weeding

30.

Which of the following method can be used for irrigating unlevelled fields

a)

Drip irrigation

b)

River lift system

c)

Tube well

d)

Sprinkler

31.

The management and production of fish is called

a)

Pisciculture

b)

Apiculture

c)

Sericulture

d)

Aquaculture

32.
______________ helps us  digest our food and they produce needed vitamins.
a)
Bacteria
b)
Fungi
c)
Protozoa
d)
Algae
33.

A bacteria responsible for curdling of milk is:

a)

Lactobacillus

b)

Rhizobium

c)

Oscillatoria

d)

Plasmodium

34.

An example of symbiotic relationship is found in:

a)

Moulds

b)

Bacteriophase

c)

Aspergillus

d)

Lichens

35.

This single celled algae can cause water bloom in favorable conditions.

a)

Chlorella

b)

Volvox

c)

Kelp

d)

Spirogyra