Explore topic-wise MCQs in Grade8.

This section includes 532 Mcqs, each offering curated multiple-choice questions to sharpen your Grade8 knowledge and support exam preparation. Choose a topic below to get started.

151.

Buried waste contain

A. toxic chemicals
B. bacterial
C. both a and b
D. useful minerals
Answer» D. useful minerals
152.

Animal which were first hunted for food now being hunted for sport is

A. bison
B. tiger
C. camel
D. leopard
Answer» B. tiger
153.

The size of heart is about the size of

A. clenched fist
B. palm
C. small finger
D. foot
Answer» B. palm
154.

The organism which carry out both aerobic and anaerobic respiration is

A. plants
B. cow
C. deer
D. yeast
Answer» E.
155.

The muscular organ which pushes blood to all parts of body is called

A. heart
B. blood
C. blood vessels
D. liver
Answer» B. blood
156.

Bronchioles are further sub division of

A. trachea
B. alveoli
C. nostril
D. bronchi
Answer» E.
157.

The blood vessels which carry blood away from heart to body parts are called

A. arteries
B. veins
C. valves
D. capillaries
Answer» B. veins
158.

Maximum carbohydrates are obtained from

A. whole grain food
B. fatty fish
C. plant oil
D. nuts
Answer» B. fatty fish
159.

Starch can be tested in any food by help of

A. iodine solution
B. biuret solution
C. benedicts solution
D. felhings solution
Answer» B. biuret solution
160.

The complex carbohydrates which make up the cell wall in plants are called

A. lactose
B. maltose
C. cellulose
D. sucrose
Answer» D. sucrose
161.

The size of intestine of a human is laid in straight line will be length of

A. 1 m
B. 10m
C. 12m
D. 20m
Answer» C. 12m
162.

The main suppliers for our body are

A. proteins
B. carbohydrates
C. fats
D. all of them
Answer» E.
163.

Baker's yeast produce gas which helps in rising of dough it is

A. oxygen
B. hydrogen
C. carbon dioxide
D. nitrogen
Answer» D. nitrogen
164.

Contaminated water may lead to

A. dysentery
B. food poisoning
C. flu
D. common cold
Answer» B. food poisoning
165.

Mushrooms, yeasts, moulds and toadstools are examples of

A. bacteria
B. virus
C. fungi
D. algae
Answer» D. algae
166.

Living things which are too small to be seen with a naked eye are called

A. micro-organisms
B. unicellular organisms
C. multicellular organisms
D. complex organisms
Answer» B. unicellular organisms
167.

Bacteria can exists in shapes which are

A. spherical
B. rod
C. spiral
D. all of them
Answer» E.
168.

The blood is mixture of

A. red and blood cells
B. plasma
C. platelets
D. all of them
Answer» E.
169.

The air which we breathe in is called

A. inhaled air
B. exhaled air
C. circulated air
D. deoxygenated air
Answer» B. exhaled air
170.

The external part of nose through which air enters is called

A. trachea
B. alveoli
C. nostril
D. bronchi
Answer» D. bronchi
171.

Insects breath through small holes in their body called

A. lungs
B. air sacs
C. stomata
D. spiracles
Answer» E.
172.

The larger blood vessels which carry blood back to heart are

A. arteries
B. veins
C. valves
D. capillaries
Answer» C. valves
173.

When sunlight passes through tiny suspended rain drops it produces

A. rainbow
B. white light
C. rain
D. clouds
Answer» B. white light
174.

Parallel light beam strikes a smooth surface producing parallel

A. image
B. beams
C. rays
D. particles
Answer» C. rays
175.

The papers which absorb certain colored lights and transmit others are called

A. colored filters
B. colored absorbers
C. absorbers
D. trimesters
Answer» B. colored absorbers
176.

Light travelling in a straight line strikes another surface and

A. bounces off
B. pass through
C. absorbed
D. adsorbed
Answer» B. pass through
177.

The image produced by a concave mirror will be

A. virtual
B. upright
C. magnified
D. all of them
Answer» E.
178.

The protein which is red in color and present in blood is called

A. hemoglobin
B. red cells
C. platelets
D. iron cells
Answer» B. red cells
179.

The upper small chambers are called as

A. atria
B. ventricle
C. systole
D. diastole
Answer» B. ventricle
180.

A long wind pipe in which air enters when we breathe is called

A. trachea
B. alveoli
C. nostril
D. bronchi
Answer» B. alveoli
181.

The number of chambers in a heart is

A. 2
B. 3
C. 4
D. 1
Answer» D. 1
182.

The small air sacs which are present at the end are called

A. trachea
B. alveoli
C. nostril
D. bronchi
Answer» C. nostril
183.

Bacterial diseases includes

A. diphtheria
B. SARS
C. small pox
D. dengue fever
Answer» B. SARS
184.

Female anopheles mosquito spread

A. Malaria
B. Dengue
C. Polio
D. Rubella
Answer» B. Dengue
185.

Viruses are not regarded as living things because they cannot

A. survive
B. reproduce
C. attack host cell
D. invade
Answer» C. attack host cell
186.

Bacteria are

A. non-living
B. unicellular organisms
C. multicellular organisms
D. complex organisms
Answer» C. multicellular organisms
187.

Polio can lead to

A. paralysis
B. nervous system distracted
C. both a and b
D. eye diseases
Answer» D. eye diseases
188.

The de-oxygenated blood from parts of body is received by

A. right side
B. left side
C. atrium
D. ventricle
Answer» B. left side
189.

The smaller sub divisions of arteries in many tiny blood vessels are called

A. plasma
B. veins
C. valves
D. capillaries
Answer» E.
190.

A pale yellow liquid in which blood cells n platelets are suspended is

A. plasma
B. fluid
C. cytoplasm
D. liquid
Answer» B. fluid
191.

There is surrounding of rich capillaries around

A. trachea
B. alveoli
C. nostril
D. bronchi
Answer» C. nostril
192.

Ventricles are chambers of heart which are

A. upper
B. lower
C. middle
D. valves
Answer» C. middle
193.

Concrete roads on hot days do

A. expand
B. contracts
C. both a and b
D. break
Answer» B. contracts
194.

Train if moved on bent tracks may be

A. derailed
B. faster
C. slow down
D. accelerated
Answer» B. faster
195.

Reducing unnecessary heat loss or gain helps to

A. conserve energy
B. gain energy
C. lose energy
D. stabilize energy
Answer» B. gain energy
196.

The hotter will be object the more will be heat

A. conduction
B. convection
C. radiation
D. convection currents
Answer» D. convection currents
197.

The disease which is accompanied by stunted growth and softening of bones is called

A. scurvy
B. rickets
C. kwashiorkor
D. night blindness
Answer» C. kwashiorkor
198.

The first part of small intestine is called

A. duodenum
B. ileum
C. ischium
D. rectum
Answer» B. ileum
199.

The swelling in thyroid gland in neck happens in disease

A. goiter
B. anemia
C. rickets
D. nerve degeneration
Answer» B. anemia
200.

The part of large intestine which temporarily stores waste material and excretes in the form of feces is called

A. rectum
B. ileum
C. duodenum
D. villi
Answer» B. ileum