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Write any two activities which require less than one bucket of water.
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Solve the cross-word puzzle given as figure from the clues given below.
Across
-
- Lack of nutrients in our diet over a long period causes these diseases (10)
- Rice and potato are rich in this type of carbohydrate (6)
- Deficiency disease in bones making it become soft and bent (7)
- The diet that provides all the nutrients that our body needs, in right quantities, along with adequate amount of roughage and water (8, 4)
- Deficiency disease with bleeding gums (6)
- Disease caused due to deficiency of iodine (6)
Down - Starch and sugar in our food are rich in this type of energy giving nutrient (13)
- The term given to the useful components of food (9)
- The disease caused by deficiency of iron in diet (7)
- Green leafy vegetables, liver and apples are rich in this mineral (4)
- Deficiency disease caused due to lack of vitamin B in the diet (8)
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Why is there a need for conserving water? Give two reasons.
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Fill in the blanks selecting words from the following list
snow, rain, clouds, vapour, evaporation, transpiration.
Water, as ______ goes into atmosphere by the processes of ______ and ______ and forms ______, which on condensation fall in the form of ______ and ______.
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Dissolve two spoons of common salt in half a cup of water. Now if you want to get the salt back, what will you do?
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Which of the following statements is incorrect?
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Wind does not help in the movement of which of the following?
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State whether the following statement is true or false. If false, correct them.
Air does not occupy any space.
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In a number of musical instruments, air plays an important role. Can you name some such instruments?
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In the boxes of Column, I the letters of some words got jumbled. Arrange them in proper form in the boxes given in Column II
| Column I | Column II | ||
| (a) | \[\boxed{\text{D}}\]\[\boxed{\text{I}}\]\[\boxed{\text{L}}\]\[\boxed{\text{L}}\]\[\boxed{\text{M}}\]\[\boxed{\text{W}}\]\[\boxed{\text{I}}\]\[\boxed{\text{N}}\] | (a) | `squaresquaresquaresquaresquaresquaresquare square` |
| (b) | \[\boxed{\text{Y}}\]\[\boxed{\text{N}}\]\[\boxed{\text{O}}\]\[\boxed{\text{G}}\]\[\boxed{\text{X}}\]\[\boxed{\text{E}}\] | (b) | `squaresquaresquaresquaresquare square` |
| (c) | \[\boxed{\text{M}}\]\[\boxed{\text{E}}\]\[\boxed{\text{S}}\]\[\boxed{\text{K}}\]\[\boxed{\text{O}}\] | (c) | `squaresquaresquaresquaresquare` |
| (d) | \[\boxed{\text{T}}\]\[\boxed{\text{U}}\]\[\boxed{\text{D}}\]\[\boxed{\text{S}}\] | (d) | `squaresquaresquare` |
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Make sentences using the given set of words.
Air, wind, motion, called
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A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
The ______ makes the windmill rotate.
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A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Air is a ______ of some gases.
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Match the items of Column I with the items of Column II
| Column I | Column II | ||
| (a) | Weather cock | (i) | Gases and fine dust particles |
| (b) | Mountaineers | (ii) | Sailing yacht |
| (c) | Fine hair inside the nose | (iii) | Oxygen cylinders |
| (d) | Smoke | (iv) | Direction of air flow |
| (e) | Wind | (v) | Prevent dust particles |
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Explain the following observations very briefly
A firki does not rotate in a closed area.
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Explain the following observations very briefly
The arrow of weather cock points towards a particular direction at a particular moment.
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Paheli kept some water in a beaker for heating. She observed that tiny bubbles appeared before the water started to boil. She boiled the water for about 5 minutes and filled it in a bottle up to the brim and kept the bottle air tight till it cooled down to room temperature.
Why did the tiny bubbles appeared?
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Paheli kept some water in a beaker for heating. She observed that tiny bubbles appeared before the water started to boil. She boiled the water for about 5 minutes and filled it in a bottle up to the brim and kept the bottle air tight till it cooled down to room temperature.
Do you think tiny bubbles will appear on heating the water taken out from the bottle? Justify your answer.
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Some term related to fabric is jumbled up and given below. Write it in its correct form.
sinnping
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Some term related to fabric is jumbled up and given below. Write it in its correct form.
vingwea
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