CBSE Class 4 Science Food for plants

Read and download free pdf of CBSE Class 4 Science Food for plants. Get printable school Assignments for Class 4 Science. Standard 4 students should practise questions and answers given here for Science in Grade 4 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 4 Science prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations

Food For Plants Class 4 Science Assignment Pdf

Class 4 Science students should refer to the following printable assignment in Pdf for Food For Plants in standard 4. This test paper with questions and answers for Grade 4 Science will be very useful for exams and help you to score good marks

Class 4 Science Assignment for Food For Plants

CBSE Class 4 Science Food for plants Students are advised to refer to the attached assignments and practise them regularly. This will help them to identify their weak areas and will help them to score better in examination. Parents should download and give the assignments to their children for practice.

SCIENCE

CLASS-IV

LESSON-1

FOOD FOR PLANTS

I DEFINE – KEYWORDS (PAGE 10)

II ANSWER THE FOLLOWING QUESTION

1. What happens to the food prepared in the leaves?

Ans. The food produced by the plants is in the form of sugar and the extra sugar produced is changed to starch and is stored in different parts of the plant such as in roots, stems, leaves, fruits and flowers.

2. Describe the process of photosynthesis.

Ans. The process by which green plants produce food using carbon-di-oxide, water and chlorophyll in the presence of sun light is called photosynthesis.

3. Why should we grow plants near our houses?

Ans. Plants produce oxygen as a waste product during photosynthesis. We humans breathe in oxygen. Hence, we should grow plants and trees near our house.

4. Write a paragraph describing how preparing food by plant is similar to cooking food.

Ans. As food is prepared in the kitchen of a house, so is the food prepared in the leaves of a plant using carbon-di-oxide, water and chlorophyll in the presence of sun light.

5. Describe an experiment to test for starch in a leave.

Ans. Aim – to test the presence of starch.

I. Take a leaf from a potted plant.

II. Boil the leaf in water for 10 Minutes.

III. Dip the leaf in warm alcohol.

IV. Add a few drops of Iodine on the leaf.

V. The leaf turns bluish black, showing the presence of starch.

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