Explore topic-wise MCQs in Grade6.

This section includes 1098 Mcqs, each offering curated multiple-choice questions to sharpen your Grade6 knowledge and support exam preparation. Choose a topic below to get started.

351.

To avoid the bad intensity of daytime heat, the animals of desert come out of their habitats at/in

A. day
B. night
C. evening
D. dawn
Answer» C. evening
352.

PH value of soil directly affects the growth of

A. land
B. pressure
C. plant
D. none of them
Answer» D. none of them
353.

Crabs that lack a hard carapace, and adopt the empty shells of gastropod mollusks, such as

A. snail
B. whelk
C. grasshopper
D. lobster
Answer» C. grasshopper
354.

Due to lack of food and water, only reptiles, rodents and amphibians would be found in the

A. tropical rainforest
B. plains
C. desert
D. mountains
Answer» D. mountains
355.

Fleas are the most common

A. Internal parasites
B. external parasites
C. pesticides
D. amoebas
Answer» C. pesticides
356.

Lakes, ponds, forests, dens and even a single drop of water could be an example of

A. habitat
B. community
C. population
D. minerals
Answer» B. community
357.

Greenhouses use the effect of temperature rise, in order to increase the rate of

A. transpiration
B. respiration
C. photosynthesis
D. processing
Answer» D. processing
358.

The vascular bundle named xylem, takes water and minerals to the

A. leaves
B. flower
C. roots
D. stem
Answer» B. flower
359.

The rate of photosynthesis is affected when the temperature is too

A. hot
B. mild
C. cold
D. hot or cold
Answer» E.
360.

Glucose and oxygen combine to form carbon dioxide and water plus

A. oxygen
B. energy
C. neon
D. nitrous oxide
Answer» C. neon
361.

The process of photosynthesis increases when the light gets

A. dim
B. brighter
C. off
D. none of them
Answer» C. off
362.

The color of the pigment in chloroplast is

A. green
B. black
C. yellow
D. red
Answer» B. black
363.

The process of photosynthesis takes place in the

A. Starch and Sucrose
B. Glucose and oxygen
C. chloroplast
D. system
Answer» D. system
364.

The guard cells flanking stomata control the oxygen and carbon dioxide entering the leaf by opening and closing the

A. veins
B. leaf pores
C. stoma
D. palisade
Answer» C. stoma
365.

Which of these is true about photosynthesis?

A. It occurs in both animal and plants
B. It occurs in both fungi and plants
C. it is a breaking down process
D. it is building up process
Answer» E.
366.

Photosynthesis decreases the concentration of carbon dioxide in air and other harmful wastes, this increases the purification of respiratory disease for

A. none of them
B. living beings
C. only plants
D. only animals
Answer» C. only plants
367.

All animals need oxygen and most of this oxygen comes from

A. roots
B. plants
C. stem
D. pollen grain
Answer» C. stem
368.

Plant products like timber, rubber, herbs, medicines resin and oils are derived from

A. respiration
B. photosynthesis
C. processing
D. transpiration
Answer» C. processing
369.

Respiration takes place in

A. day
B. night
C. day & night
D. none of them
Answer» D. none of them
370.

Small openings under the leaf surface through which gaseous exchange and water loss takes place is known as

A. pollen grain
B. stomata
C. petal
D. stigma
Answer» C. petal
371.

Mesophyll tissues contain chlorophyll and proteins to carry out

A. photosynthesis
B. respiration
C. transpiration
D. none of them
Answer» B. respiration
372.

Technology helps us towards further

A. hypothesis
B. discoveries
C. verification
D. analysis
Answer» C. verification
373.

The study of nature is called

A. astronomy
B. archeology
C. science
D. arts
Answer» D. arts
374.

A skill which is used to transmit and receive information by using tables, charts, graphs, drawings or words is called

A. processes
B. skills
C. communication
D. analysis
Answer» D. analysis
375.

In a sense science and technology is a sword with

A. sharp blade
B. double edge
C. large weight
D. high cost
Answer» C. large weight
376.

We can travel far away places with ease and in less time by invention of

A. buses
B. aero planes
C. missiles
D. internet
Answer» C. missiles
377.

Plants need oxygen

A. to make pollen that is lighter than air in their flowers
B. to combine with hydrogen from the soil and make water
C. to make food as part of the process of photosynthesis
D. To breakdown food that they have stored and use it to grow
Answer» E.
378.

At midnight, the process taking place in the leaves is called

A. photosynthesis
B. mainly photosynthesis and some respiration
C. none of them
D. respiration
Answer» E.
379.

Photosynthesis is a process that converts waste products to useful substance, which in result provide

A. oxygen
B. energy
C. neon
D. carbon dioxide
Answer» C. neon
380.

The main task of stomata is to

A. intake of carbon dioxide and the release of oxygen
B. intake of carbon dioxide
C. release of oxygen
D. release of carbon dioxide
Answer» B. intake of carbon dioxide
381.

Leaf adapted to carry out photosynthesis because they are

A. thin
B. flat
C. flat & thin
D. none of them
Answer» D. none of them
382.

The rate of photosynthesis increases with increase in the concentration of

A. carbon dioxide
B. oxygen
C. sun light
D. neon
Answer» B. oxygen
383.

Chlorophyll is a

A. single pigment
B. color
C. complex pigment
D. none of them
Answer» D. none of them
384.

Photosynthesis reduces the concentration of

A. carbon dioxide
B. oxygen
C. energy
D. neon
Answer» B. oxygen
385.

The dead protective layer over the upper epidermis of the leaf and below the lower one is known as

A. palisade
B. mesophyll
C. cuticle
D. stoma
Answer» D. stoma
386.

The most chloroplast organelles are present in

A. stoma
B. palisade layer
C. stigma
D. stalk
Answer» C. stigma
387.

Invention of new products and solving problems by the application of science is known as

A. technology
B. vaccine
C. coining
D. all of them
Answer» B. vaccine
388.

At times humans does do to science and technology the

A. misuse
B. abuse
C. both a and b
D. beneficial
Answer» D. beneficial
389.

Great benefits have brought to mankind by

A. science
B. technology
C. both a and b
D. astronomy
Answer» D. astronomy
390.

Discovery of new medicines can prevent or even cure different diseases and enable us to live

A. longer
B. healthier
C. both a and b
D. stronger
Answer» D. stronger
391.

Science and technology both have their specified

A. limitations
B. benefits
C. discoveries
D. all of them
Answer» B. benefits
392.

Leaves carry out the process of photosynthesis due to

A. flat shape
B. periodic replacement
C. they contain most of the plant's chlorophyll
D. all of them
Answer» E.
393.

The gas that has second highest percentage in air is

A. carbon dioxide
B. argon
C. oxygen
D. nitrogen
Answer» D. nitrogen
394.

An artist can make best use of colors by knowing their

A. brands
B. science
C. physics
D. texture
Answer» C. physics
395.

The study of living things is the branch of science called

A. biology
B. chemistry
C. physics
D. geology
Answer» B. chemistry
396.

If a chemical get into your mouth you should

A. spit it out
B. rinse your mouth
C. visit a doctor
D. all of them
Answer» E.
397.

Science experiments are really interesting and you may have fun but if you are not careful it can be

A. dangerous
B. exciting
C. normal
D. same
Answer» B. exciting
398.

If you met an accident like injury, breakage or spillage you should immediately

A. report to teacher
B. run
C. hide
D. leave lab
Answer» B. run
399.

Astronomy includes the study of stars, planets, moons and

A. space
B. earth
C. global warming
D. all of them
Answer» B. earth
400.

Thomas Edison invented light bulb, phonograph, motion picture apparatus and many things even being

A. blind
B. deaf
C. dumb
D. sick
Answer» C. dumb