10th Eng Science Part1

Man has always been curious about unknown places and he has always been eager to expand the horizons of his knowledge by exploring the unknown world. He must have had […]

In the previous standards we have seen that organic and inorganic compounds are the two important types of compounds. Except materials fabricated from metal and glass/soil several other materials from […]

Earth was born about 4.5 billion years ago. Various formative processes have been taking place in the core of the earth and its surroundings since its creation till today. These […]

Lenses You must have seen lenses used in day to day life. Some examples are: the lenses used by old persons for reading, lens embedded in the front door of […]

We have seen that, generally light travels in a straight line. Because of this, if an opaque object lies in its path, a shadow of the object is formed. We […]

In the previous standard, we have learnt about heat and different types of heat transfer. We have also performed few experiments related to expansion and contraction of solids, liquids and […]

We have learnt in earlier standards about static electricity. We performed various experiments regarding negatively and positively charged objects. The reason behind the object becoming positively and negatively charged is […]

In earlier standards we have seen how compounds are formed by chemical combination of elements. We have also learnt that the driving force behind formation of a chemical bond is […]

Classification of elements We have learnt in the previous standards that all the atoms of an element are of only one type. Today 118 elements are known to the scientific […]

We have seen in the previous standard that the gravitational force is a universal force and it acts not only between two objects on the earth but also between any […]