Key Differences

These natural resources are classified into two categories, i.e. renewable and non-renewable resources. In the first category, all those resources which are available in infinite quantity and can be used again and again are included, while in the second type, the resources which are limited and will extinct in future are considered. Living organisms are blessed with gifts of nature, as it made our earth, the best place to reside. The thought of life would be unimaginable, without the … [Read more...]

The objects surrounding us are created out of matter, and it is present in three forms, i.e. element, compound and mixture. Chemistry is that branch of science which deals with these three forms. Elements allude to those substances that can't be split into simpler substances. The compound is the chemical combination of elements, bonded together in specific proportion. The mixture is the physical combination of substances, bonded together in any proportion. While the compound is a pure … [Read more...]

Identification of metals and non-metals is a bit difficult if you do not have any idea of their characteristics. While a metal is a solid substance, usually hard, lustrous and opaque. On the other hand, a non-metals is a solid or gaseous material, in which the metallic properties are absent. The matter is a physical substance that occupies space and has mass. It is present in three forms, which are elements, compound and mixture. Out of these three forms, elements is the purest form of matter … [Read more...]

The two phenomena based on straight light propagation are reflection and refraction, wherein the reflection deals with the bouncing of light rays whereas the refraction talks about bending of light rays. Our world is full of objects that we can see only with the help of light. If there is the absence of light in a room, nothing is visible to us. Have you ever wondered, how can we perceive things with eyes? In the daytime, it is the light rays coming from the sun, that help us to see objects, … [Read more...]

At night, when you look up high in the sky, you will notice trillions of shining dots, out of which some appear brighter, some are bigger while some of them twinkle. It is a point to ponder, what are these bright dots? So they are nothing but stars and planets. Stars are heavenly bodies that possess their own light and twinkle. They are fixed and large luminous body like the Sun. On the flip side, planets are celestial objects, which have an apparent motion of their own and also moves around … [Read more...]

The way, we handle wastes has a great impact on the global environment, i.e. our ecosystem. In our school life, all of us have been taught an eco-friendly 'mantra', with the help of which wastes can be managed or disposed off effectively, with least harm to the environment. The rule is, Reduce, Reuse and Recycle, often known as 3R's. While reuse implies using the same item or natural resource, again and again, recycle alludes to the transformation of waste item to a useful one. Most of the … [Read more...]