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प्रश्न
Draw a graph to show the variation in density of water with temperature in the range from 0°C to 10°C.
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उत्तर

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संबंधित प्रश्न
Give reason of Ice floats on water.
What is the role of the anomalous behaviour of water in preserving aquatic life in regions of cold climate?
Explain the following
A glass bottle completely filled with water and tightly closed at room temperature is likely to burst when kept in the freezer of a refrigerator.
Explain why do vegetables and fruits get damaged during severe frost?
A deep pond of water has its top layer frozen. What will be the likely temperature of water layer at the bottom of the pond?
The following figure shows a metal cylinder, containing boiling water. One half side A is polished and another half, B is painted black. Two thin metal sheets X and Y are painted black and have one rubber stopper fixed with wax on each sheet. These sheets are equidistant from the boiling water (container A, B) as shown in the diagram. What would you expect to happen after a few minutes? Give a reason for your answer.

Give reasons for the following:
Even when the water in the lakes is frozen, fish can survive.
Write scientific reason.
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Draw a neat and labelled diagram of Hope’s apparatus.
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- Which property do you understand in this picture?
- What is the temperature of the water at the surface?
- What is the temperature below the layer of ice on the surface?
