Mixtures are physical combinations of substances where each keeps its properties, like sand and salt. Compounds are chemical combinations where substances lose their individual properties, like water. Mixtures can be separated easily, but compounds require chemical changes. Class 8 Science Curiosity ...
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Elements are pure substances made of one type of atom, like oxygen or iron. Compounds are substances formed when two or more elements chemically combine, like water or carbon dioxide. Compounds have different properties than their individual elements. Class 8 Science ...
In solids, particles are tightly packed and vibrate in place, giving them a fixed shape. In gases, particles are far apart, move freely and spread out to fill space. This explains why solids are rigid and gases are fluid. Class 8 ...
A shiny spoon acts like a curved mirror, reflecting light unevenly. Because it’s curved, light rays don’t reflect evenly, causing the image to stretch or flip. That’s why your face looks bent or upside-down in it. Class 8 Science Curiosity Grade ...
Lenses bend light to form images, helping us understand vision and devices like magnifiers, microscopes and cameras. By studying lenses, we learn how to focus, zoom and see distant or tiny objects clearly and accurately. Class 8 Science Curiosity Chapter 1 ...