Class: VII A and B
Subject: Computer Science
=> Explain the Following topics with Diagrams.
2. Floppy Disk
Subject: Social Science
2. TRY THESE-- PAGE—10 FROM NCERT TEXT- BOOK CLASS-VII
SUB: Science (VII-A, B)
1-What are villi? What is their location and function?
2-Where is bile produced? Which component of the food does it help to digest?
3- Define ingestion and egestion.
4-Why human beings cannot digest cellulose like the castles do?
5-Distinguish between a parasite and saprotroph.
6-How would you test the presence of starch in leaves?
7-Give a brief description of the process of synthesis of food in green plants.
8-Why does hair keep sheep warm?
9-Explain the different steps involved in the processing of wool.
10-Make sketches of the two stages in the life history of the silk moth which are directly related to
production of silk.
2-. Try growing a sweet potato just in water. Describe your experiment and observations.
3- Visit a doctor and find out:- (Write the answers in your notebook.)
(i) Under what conditions does a patient need to be on a drip of glucose?
(ii) Till when does a patient need to be given glucose?
(iii) How does glucose help the patient recover?
4. Find out what vitamins are and get the following information.( Write a one-page note on the information
collected by you.)
(i) Why are vitamins necessary in the diet?
(ii) Which fruits or vegetables should be eaten regularly to get vitamins?
5. Collect data from your friends, neighbours and classmates to know more about “milk teeth”.Tabulate your
data. One way of doing it is given below:
6- Collect the following pictures and paste these in scrap book-
Class :- VII A