Answer the following questions in one word or in a sentence only. |
(i) Name two items that are made from coconut fiber. |
Answer the following questions in one word or in a sentence only. |
(ii) Dolphins and whales do not have gills yet they breathe in water. How? |
Answer the following questions in one word or in a sentence only. |
(iii) Arrange the following lengths in their increasing magnitude: |
Answer the following questions in one word or in a sentence only. |
(iv) What is the direction of current in an electric circuit? |
Answer the following questions in one word or in a sentence only. |
(v) What happens when the north pole of a magnet is placed near the north pole of another magnet |
Answer the following questions in one word or in a sentence only. |
(vi) What happens if it does not rain for a. long period? |
Discuss : |
(a) Is garbage disposal the responsibility only of the government? |
(b) Is it possible to reduce the problems related to disposal of garbage? |
Make sentences using the given set of words. |
(a) 99%, oxygen, nitrogen, air, together |
(b) Respiration, dissolved, animals, air, aquatic |
(c) Air, wind, motion, called |
(i) Fill in the blanks in the following sentences : |
(a) The process of changing water into its vapour is called ????. . |
(b) The process of changing water vapour into water is called ????. . |
(c) No rainfall for a year or more may lead to .......... in that region. |
(d) Excessive rains may cause.............. |
(ii) Name the two sources of natural water. |
(i) Which material is used to make a permanent magnet? | |||
(ii) Match Column I with Column II (One option of A can match with more than one option of B) | |||
Column I | Column II | ||
(a) | Magnet attracts | (i) | rests along a particular direction |
(b) | Magnet can be repelled | (ii) | iron |
(c) | Magnet if suspended | (iii) | by another magnet |
(d) | Poles of the magnet can be identified by | (iv) | iron filings |
(i) Give two examples of periodic motion. |
(ii) Why could you not use an elastic measuring tape to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with an elastic tape? |
Fill in the names of useful items made from jute fibers in Fig. One such example is given. |
Fig. |
Label and colour the different parts of the plants given below in fig. : |
(i) What is an electric switch? What is the purpose of using it? |
(ii) Give two examples of electrical appliances where electric switch is used. |
Read the functions of parts of a plant given below: |
(a) Fixes plant to the soil |
(b) Prepares starch |
(c) Takes part in reproduction |
(d) Supports branches and bears flowers |
In the diagram given in Fig., write the names of the parts whose functions are mentioned in the above points. |
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