Please select a subject first
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Place the following statements in a proper order to form a meaningful paragraph.
- Which in turn decreases the seepage of rain water into the ground.
- This decreases the open areas like parks and playgrounds.
- Increasing population create demand for construction of houses, shops, offices, roads and pavements.
- This results in depletion of water table and creates scarcity of more water.
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Paheli wrote a food chain in the following way:
frog → eagle → insects → grass → snake
The chain is not in the correct order. Help her to write the food chain correctly.
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Clothes of ______ colours absorb more heat better than clothes of light colours.
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Match the following:
| (i) | Land breeze blows during | (a) | summer |
| (ii) | Sea breeze blows during | (b) | winter |
| (iii) | Dark coloured clothes are preferred during |
(c) | day |
| (iv) | Light coloured clothes are preferred during |
(d) | night |
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Discuss why wearing more layers of clothing during winters keeps us warmer than wearing just one thick piece of clothing.
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Match structures given in Column I with functions given in Column II.
| Column I | Column II | ||
| (i) | Stomata | (a) | Absorption of water |
| (ii) | Xylem | (b) | Transpiration |
| (iii) | Root hairs | (c) | Transport of food |
| (iv) | Phloem | (d) | Transport of water |
| (e) | Synthesis of carbohydrates |
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Why is it necessary to excrete waste products?
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Draw a diagram of the human excretory system and label the various parts.
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Show the shape of the distance-time graph for the motion in the following case:
A car moving with a constant speed.
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Show the shape of the distance-time graph for the motion in the following case:
A car parked on a side road.
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Figure shows the distance-time graph for the motion of two vehicles A and B. Which one of them is moving faster?
Figure: Distance-time graph for the motion of two cars
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Which of the following distance-time graphs shows a truck moving with speed which is not constant?
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Explain the factors responsible for the depletion of water table.
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Wheat dough is left in the open, after a few days, starts to emit a foul smell and becomes unfit for use. Give reason.
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Can you give me a name?
Solve the following riddles by writing the name of the organism and its mode of nutrition. One riddle is solved to help you.
I am white and soft. I grow well in the rainy season. Children pluck me from the ground and admire me. I absorb nutrients from decomposed dead parts of plants and animals in the soil. ______, ______.
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Following statements describe animal nutrition. Read the statement and give one word for the statement. Write the terms that describe process.
Transportation of absorbed food to different parts of body and their utilisation
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Following statements describe animal nutrition. Read the statement and give one word for the statement. Write the terms that describe process.
Transport of digested and soluble food from the intestine to blood vessels.
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At a camp site there are tents of two shades – one made with black fabric and the other with white fabric. Which one will you prefer for resting on a hot summer afternoon? Give reason for your choice. Would you like to prefer the same tent during winter?
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Two students were asked to plot a distance-time graph for the motion described by Table A and Table B.
| Table A |
||||||
| Distance moved (m) | 0 | 10 | 20 | 30 | 40 | 50 |
| Time (minutes) | 0 | 2 | 4 | 6 | 8 | 10 |
| Table B |
||||||
| Distance moved (m) | 0 | 5 | 10 | 15 | 20 | 25 |
| Time (minutes) | 0 | 1 | 2 | 3 | 4 | 5 |
The graph given in figure is true for
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If we denote speed by S, distance by D and time by T, the relationship between these quantities is ______.
Concept: undefined >> undefined
