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Worksheets

class 8

Total questions: 16

Worksheet time: 9mins

Name
Class
Date
1.

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

answer choices

a)

PADDY

b)

WHEAT

c)

MAIZE

d)

WATERMELON

2.

What does NPK stand for?

answer choices

a)

Nutrients,

b)

Pancakes

c)

Kittens

d)

Nitrogen, Phosphorus, Potassium

3.
Iron deficiency is responsible for
a)
Anemia
b)
Protein
c)
Calcium
d)
zink
4.
 Which of the following are renewable sources of energy?
a)
coal and natural gas
b)
oil and electricity
c)
sunlight and petroleum
d)
wind and water
5.
What is biomass? 
a)
energy from the sun
b)
energy from water
c)
energy from wind
d)
energy from plant and animal waste
6.

The process in which different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash, is known as

a)

Crop rotation

b)

Intercropping

c)

Terrace farming

d)

Contour cropping

7.
Chalk, limestone, marble, eggshells and seashells are made of
a)
1. calcium hydroxide
b)
2. calcium oxide
c)
3. calcium carbonate
d)
4. calcium chloride
8.

What is the SI unit of force?

a)

J (Joule)

b)

N (Newton)

c)

N/kg (Newton per kilogram)

d)

K (Kelvin)

9.

How much work is done is a force of 12 N moves an object a distance of 5 m?

a)

30 J

b)

2.4 J

c)

60 J

d)

12 J

10.
What is represented by the blue lines?
a)
Trough
b)
Crest
c)
Wavelength
d)
Amplitude
11.

Organisms other than plants which contain Chlorophyll are

a)

Algae

b)

Protozoa

c)

Virus

d)

Fungi

12.

Which of the following component of food contains Nitrogen

a)

Carbohydrate

b)

Protein

c)

Fat

d)

Minerals

13.

What is the name that corona virus causing disease (COVID-19)

a)

corona virus disease bacteria

b)

severe acute respiratory syndrome corona virus 2

(SARS-CoV-2)

c)

2019 novel corona virus

d)

Roto-virus

14.
The approximate number of elements we know about today is .......
a)
18
b)
48
c)
118
d)
1018
15.
zinc + hydrochloric acid ---->
a)
zinc chloride
b)
zinc chloride + hydrogen
c)
zinc chloride + oxygen
d)
zinc chlorine + hydrogen
16.
Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty