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SAI INTERNATIONAL SCHOOL


                                                         CLASS -IV


                                             SCIENCE-HOME ASSIGNMENT

               Chapter 7- Leaves-The Food Factory of Plant



               A. Fill in the blanks.

               1.Green plants prepare their own ___________.


               a. house         b. food         c. water       d. all of these


               2. Water required for photosynthesis is absorbed by the
               ____________of the plants.


               a. leaves         b. stem         c. roots       d. none of these


               3. Extra food is stored in the form of _______ in plants.


               a. glucose          b. water           c. starch         d. chlorophyll


               4. Iodine solution helps in detecting the presence of _________


               a. glucose          b. water           c. starch        d. chlorophyll



               5. Which colour is obtained when iodine comes in contact with starch?


               a. green             b. yellow           c. brown       d. blue-black


               B. Answer the following questions.


               a. Explain the process of photosynthesis with the help of a coloured

               diagram.


               b. How do plants use and store the food prepared during

               photosynthesis?
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