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Properties of Water Video Lecture | Crash Course for Class 6
FAQs on Properties of Water Video Lecture - Crash Course for Class 6
| 1. What are the unique properties of water that make it essential for life? |  |
Ans. Water has several unique properties that are essential for life, including its ability to dissolve many substances, which makes it a great solvent. It has a high specific heat capacity, allowing it to absorb and retain heat without changing temperature quickly. Water also has a high surface tension, enabling some insects to walk on it, and it is less dense as a solid (ice) than as a liquid, allowing ice to float and insulate bodies of water below.
| 2. Why is water referred to as the "universal solvent"? | |
Ans. Water is called the "universal solvent" because it can dissolve more substances than any other liquid. This property is due to its polar molecular structure, which allows it to interact with various ions and molecules, making it essential for biological processes, transportation of nutrients, and chemical reactions in living organisms.
| 3. How does water's high specific heat benefit the environment? | |
Ans. Water's high specific heat means it can absorb a lot of heat without a significant increase in temperature. This property helps stabilize the Earth's climate by moderating temperatures in oceans and large bodies of water. It also protects aquatic life by maintaining a relatively constant temperature in water bodies, even when air temperatures fluctuate.
| 4. What role does water play in the human body? | |
Ans. Water plays a crucial role in the human body by regulating body temperature, transporting nutrients and oxygen to cells, aiding in digestion, and removing waste products. It also helps cushion joints and organs, and is vital for biochemical reactions that sustain life.
| 5. How does the density of ice compared to liquid water impact aquatic ecosystems? | |
Ans. The fact that ice is less dense than liquid water causes it to float on the surface of lakes and ponds. This insulates the water below, preventing it from freezing solid and allowing aquatic life to survive during cold weather. It creates a habitat for organisms and supports ecosystems by maintaining a stable environment for fish and other aquatic species.
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Oct 23, 2025
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Video Description: Properties of Water for Class 6 2025 is part of Crash Course for Class 6 preparation.
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