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.
Tiwari Academy Discussion Latest Questions
Gases like oxygen and carbon dioxide dissolve in water, allowing aquatic life to survive. The amount of gas that dissolves depends on temperature and pressure, with colder water holding more dissolved gases than warmer water.
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, all materials share common properties: they have mass, occupy space, and can change state under certain conditions. These fundamental characteristics define matter, regardless of whether the material is solid, liquid, or gas.
Yes, all materials around us can be considered examples of matter. Matter includes anything that has mass and occupies space, so everything from solids, liquids, and gases to everyday objects falls into this category.
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.
I created a planter from discarded plastic bottles, decorated with paint and fabric scraps. Discussing with friends, we shared ideas and materials used. Feedback focused on enhancing durability and aesthetics for better functionality and visual appeal.
Objects can be classified into groups like plastic, metal, glass, and paper. Each material’s properties, such as durability or flexibility, relate to its function—plastics are used for containers, metals for tools and glass for windows.
Recyclers check materials for type (paper, glass, metal, plastic), cleanliness, and separability. They avoid buying contaminated or mixed materials, as these complicate recycling processes and reduce the value of the recyclable materials.