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Class 4 Exam  >  Class 4 Notes  >  Science for Class 4  >  Worksheet: How Do Plants Make Their Food - 1

Class 4 Science - How Do Plants Make Their Food - CBSE Worksheets - 1

Q1: Give two examples of the following.

(i) Roots with stored food ______________ ______________

(ii) Flowers with stored food ______________ ______________

(iii) Insectivorous plants ______________ ______________

(iv) Stems with stored food ______________ ______________

(v) Parasitic plants ______________ ______________

(vi) Animals that depend on plants for shelter ______________ ______________
Class 4 Science - How Do Plants Make Their Food - CBSE Worksheets - 1

Q2: Multiple Choice Questions (MCQs).

(i) Which part of the plant supplies water collected from the stem to the leaf?
Class 4 Science - How Do Plants Make Their Food - CBSE Worksheets - 1(a) Leaf blade
(b) Stomata
(c) Stalk
(d) Veins

(ii) Which of the following is responsible for green colour of the leaves?
(a) Midrib
(b) Leaf blade
(c) Stoma
(d) Chlorophyll

(iii) Which of the following stores the food in leaves?
(a) Cauliflower
(b) Legumes
(c) Spinach
(d) Broccoli

(iv) Which of the following is not required for photosynthesis?
(a) Water
(b) Sunlight
(c) Carbon dioxide
(d) Oxygen

(v) Venus flytrap has modified ________ to trap insects.Class 4 Science - How Do Plants Make Their Food - CBSE Worksheets - 1(a) stem
(b) roots
(c) flowers
(d) leaves

Q3: Fill in the blanks.

(i) The ______________ is the flat part of a leaf.

(ii) The ______________ on the lower surface of leaves absorb carbon dioxide from air.

(iii) The extra food is stored in the form of ______________ in plants.

(iv) The leaves in cactus are reduced to ______________.

(v) The ______________ has modified leaves in the form of tubular pitcher-like structure with a lid.
Class 4 Science - How Do Plants Make Their Food - CBSE Worksheets - 1

Q4: Match the following.

Class 4 Science - How Do Plants Make Their Food - CBSE Worksheets - 1Q5: True & False.

(i) The energy from the sun is absorbed by green leaves with the help of chlorophyll. ______________

(ii) Animals depend directly or indirectly on plants for food. ______________

(iii) Insectivorous plants grow in soil rich in nutrients. ______________

(iv) During photosynthesis, plants give out carbon dioxide through the stomata. ______________

(v) Croton plant appears red because it lacks chlorophyll. ______________

Q6: Answer the following questions in brief.

(i) Define photosynthesis.

(ii) List any two plant parts that store food. Give two examples each.

(iii) Why do plants make their own food?

(iv) What is midrib? What is its function?

(v) What are insectivorous plants? Give two examples.

Q7: Answer the following questions in detail.

(i) What are the three things for which animals depend on plants? What are the three things for which plants depend on animals?

(iii) What happens during photosynthesis?

Q8: Label the following parts of a leaf.
Class 4 Science - How Do Plants Make Their Food - CBSE Worksheets - 1


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FAQs on Class 4 Science - How Do Plants Make Their Food - CBSE Worksheets - 1

1. How do plants make their food?
Ans. Plants make their food through a process called photosynthesis, where they use sunlight, water, and carbon dioxide to produce glucose (sugar) and oxygen.
2. What is the role of chlorophyll in the process of making food in plants?
Ans. Chlorophyll is a green pigment present in the chloroplasts of plant cells. It absorbs sunlight and is essential for photosynthesis, as it helps in converting light energy into chemical energy for the synthesis of food.
3. Can plants make food at night?
Ans. Plants cannot make food at night because photosynthesis requires sunlight. During the night, plants rely on the stored food reserves produced during the day through photosynthesis.
4. Why is water important for plants in making food?
Ans. Water is crucial for plants in making food because it serves as a source of hydrogen atoms needed to produce glucose during photosynthesis. Water is also essential for the transport of nutrients and maintaining turgidity in plant cells.
5. How do plants obtain carbon dioxide for photosynthesis?
Ans. Plants obtain carbon dioxide for photosynthesis through tiny pores called stomata present on their leaves. Carbon dioxide enters the leaves through these openings and combines with water and sunlight to produce glucose and oxygen.
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