No, not all lustrous materials are metals. While metals like gold and silver are lustrous, non-metals like diamonds and certain minerals also exhibit luster. Luster is not exclusive to metals but depends on surface properties.
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Liquids like vinegar dissolve in water because they are polar. However, oil does not dissolve due to its non-polar nature. Honey partially dissolves in water as it contains both water-soluble sugars and other substances.
Yes, air is matter because it has mass and occupies space. It consists of gases like nitrogen, oxygen, and carbon dioxide. Though invisible, its presence is evident through activities like inflating a balloon or wind movement.
The invention of plastic revolutionized daily life by offering versatile, durable, and affordable materials. However, it also introduced environmental challenges, such as pollution and non-biodegradability, making it both a boon and a bane for humanity.
For food waste, use plastic containers for durability and ease of cleaning. For broken glass, use sturdy, puncture-resistant containers to avoid accidents. For wastepaper, use paper or cardboard bins for easy recycling.
Transparent containers allow us to see the contents without opening them, which helps in easily identifying the material inside. This visibility improves convenience and prevents frequent handling, ensuring the stored items remain clean and organized.
Group items by category: grains, spices, canned goods, and snacks. Store frequently used items at eye level for easy access. Use clear containers for better visibility, and label shelves for quick identification and organization.
It snows on high hills because the temperature is lower than the freezing point, causing water vapor to freeze and turn into ice. As air rises over the hills, it cools, and if the temperature drops below freezing, the water ...
The boiling point of water depends on the pressure above the open surface of water. As pressure increases, the boiling point rises, and as pressure decreases, the boiling point lowers.
The rate of evaporation for a certain liquid depends on all the above factors. It depends on the temperature of the liquid, the temperature of the air, and the open surface area of the liquid.