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Liquid and Its Properties Video Lecture | Science Olympiad Class 4

FAQs on Liquid and Its Properties Video Lecture - Science Olympiad Class 4

1. What are the main properties of liquids?
Ans. The main properties of liquids include having a definite volume but no definite shape, taking the shape of their container, being incompressible, and having the ability to flow. Liquids also have surface tension and can be poured.
2. How do liquids differ from solids and gases?
Ans. Liquids differ from solids in that they do not have a fixed shape and can flow, while solids maintain their shape. Compared to gases, liquids have a definite volume but can take the shape of their container, whereas gases fill the entire space available to them.
3. What is surface tension in liquids?
Ans. Surface tension is a property of liquids that causes the surface to behave like a stretched elastic sheet. It occurs due to the cohesive forces between liquid molecules, which pull them closer together. This allows some objects, like a needle, to float on water despite being denser.
4. Why do liquids take the shape of their container?
Ans. Liquids take the shape of their container because their particles are not fixed in place, allowing them to move freely. This movement enables liquids to fill the bottom of the container first and then spread out to match the shape of the container.
5. Can you give examples of different types of liquids?
Ans. Yes! Examples of different types of liquids include water, oil, milk, juice, and vinegar. Each of these liquids has unique properties, such as viscosity and density, which can affect how they behave in different situations.
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