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CHEMICAL REACTION Physical and Chemical Changes Physical Change:A physical change is a temporary change in which an object changes its shape, size, volume, state, etc., and no new substances are formed. It can be reversed. Chemical Change:A chemical change is Read more
Periodic table It is a chart in which various elements are arranged and grouped together according to its similarity and dissimilarity. Period – Horizontal row of elements. Group – Vertical column of elements. Advantages of Periodic table Helps to memorize Read more
Gravitation The force of attraction between any two bodies in the universe is called force of gravitation or gravitation. Newton’s law of gravitation Newton’s law of gravitation states that, “everybody in this universe attracts every other body with a force Read more
Distance and displacement Distance :- Any path covered by an object is known as distance. It’s SI unit is meter (m). It is a scalar quantity. Displacement :- The shortest distance between initial and final position of a moving body Read more
Blood Blood is a red colored fluid connective tissue that consists of plasma and different cells. It circulates throughout our body delivering nutrients and oxygen to various cells and tissues of our body. Components of blood Blood consists of Plasma Read more