General Science Worksheet-15

General Science Worksheet-15

1. The scientist who studies the origin, structure and composition of the earth is called _____.

A. Geologist                                    B. Meteorologist

C. Astrologist                                 D. Botanist.

2. "Living things can move on their own". Which of the following does not demonstrate the statement?

A.                                 B.

C.                           D.

3. Which of the following is/are characteristics of all living things?

A. Reproduce                                B. Do not have a brain

C. Exchange gases                        D. Both A & C

4. Which of these plant fibres are used for making clothes?

A. Jute                B. Flax                C. Cotton           D. All of these

5. To protect silk and woollen clothes, we should use ___.

A. Medicines                                 B. Salt solution

C. Benzene solution                      D. Naphthalene balls

6. Which of the following helps us to send and receive instant messages?

A. Postal letter                              B. Radio

C. Pager                                         D. Television

7. Burning of fire needs _____.

A. Oxygen                                     B. Carbon dioxide

C. Nitrogen                                    D. Water vapour

8. Which of the following correctly represent the correct order of development of devices of communication since the ancient times?

A. Letter → Newspaper → Radio → Television

B. Letter → E-mail → Radio → Television

C. Telephone → ISD → STD → Local

D. Telegram → Parcel → Postcard → E-mail

9. When Suresh blown air into a balloon, it expanded. This shows that _____.

A. Air has no mass

B. Air has volume and occupies space

C. Air has no weight

D. Air is invisible

10. Which of the following activity requires oxygen?

A. Movement of a bicycle           B. Burning of wood bicycle

C. Building a house                      D. Planting a tree

Answer Key:

(1)–A; (2)–C; (3)–D; (4)–D; (5)–D; (6)–C; (7)–A; (8)–A; (9)–B; (10)–B