Anomalous Expansion of Water
Q. In winter, water pipelines sometimes burst. Choose the correct option responsible for the cause.
- Anomalous expansion of water.
- Evaporation of water.
- Condensation of water.
- None of these.
Which of the following is not a result of evaporation?
It changes colors
Q. At 4oC, water has minimum density and maximum volume. State true or false.
Q. Water _____ on freezing.
Q. Identify the change in state of water during the melting of polar ice caps.
- Gas → liquid
- Solid → liquid
- Liquid → solid
- Gas → solid
Q. The mirror in your bathroom turns foggy after you take a hot shower. This is due to _____.
Q. Plants with green and tender stem are called _______.
Q. Sunlight and heat are ________ factors of an ecosystem.
Q. An iron rod _____ on heating.
Q. When we heat water in a pan, it begins to boil after sometime. If we continue to heat further, the quantity of water in the pan begins to decrease. This happens due to _________.