Class-3-Science-Plants

Class-3-Science-Plants | Olympiad Practice papers online

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Class-3-Science-Plants-1

1 / 20

In addition to sunlight what else is required for photosynthesis?

Sugar and water

Carbon dioxide and water

Water and oxygen

Oxygen and carbon dioxide

2 / 20

Which part of the sugarcane plant produces juice?

Root

Fruit

Leaf

Stem

3 / 20

Potato is the modified form of ________ .

Stem

Leaf

Roof

Fruit

4 / 20

Which part of the cauliflower are you supposed to consume?

Fruit

Roots

Stem

Flower

5 / 20

Veins :

Release oxygen and carbon dioxide into the atmosphere.

Transport water, food and minerals in a leaf.

Absorb water and minerals from the soil.

Absorb carbon dioxide from the atmosphere.

6 / 20

What does a fruit contain?

Leaf

Stem

Flower

Seed

7 / 20

Plants grow in soil as well as in ________

Water

Clouds

None of the above

Sky

8 / 20

The plant shown in the figure is a ________

Water plant

Desert plant

Thorny plant

Land plant

9 / 20

Name a green colouring substance that is present in the leaves?

Salt

All of the above

Carotene

Chlorophyll

10 / 20

Jute plant is used to make ________ .

Ropes

Perfumes

Medicines

Spices

11 / 20

The plant shown in the figure is a ________

Climber

Herb

Tree

Shrub

12 / 20

Plants get carbon dioxide from the

Soil

Air

Sand

Leaves

13 / 20

Which plant needs external support to stand?

Shrubs

Trees

Climbers

Herbs

14 / 20

Which of the following part of a plant remains under the ground?

A

B

D

C

15 / 20

Which plant can grow in very low or no water for long period of time?

Mango

Neem

Cactus

Tulsi

16 / 20

Which of the following plants can mostly be found in deserts

C

B

D

A

17 / 20

Plants can be ________ as well as perennial/evergreen.

None of these

Temporary

Seasonal

Permanent

18 / 20

Which of the following part of a plant prepares food?

A

B

D

C

19 / 20

Leaves are green due to the presence of a green pigment called chlorophyll. The main function of chlorophyll is -

To perform photosynthesis in the presence of sunlight, carbon dioxide and water.

To absorb water and minerals from the soil.

To give greenish colour to the leaves.

To absorb carbon dioxide from the atmosphere.

20 / 20

Rose Shrubs :: Grape : ?

Climber

Tree

Shrubs

None of these

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