Did you ever think about how water and minerals ions travel from roots to the leaves? And what happens to them in the leaves? In this...

We have studied that atoms are the smallest particles made up of further sub-atomic particles. An element is made up of several atoms. In...

Metals, non-metals and ions make a bond to stabilize them. For metals, there is metallic bonding. For ions, there is ionic bonding. Do...

A cell is a unit of life. In this lesson we will start cell and it's structure. We will also discuss the functions of nucleus , cytoplasm...

Properties of compounds differ from their reactions. Like other compounds, ionic compounds have some specific properties. In this lesson,...

Do you know how to identify different organisms? To separate different organisms on the basis of differences? In this lesson we will go...

Metals, non-metals and ions make a bond to stabilize them. For metals, there is metallic bonding. For non metals, there is covalent...

We have learnt about diffusion and osmosis in the previous lessons. In this lesson we will learn about active transport and its...

Some atoms of the same element have different nucleon number. Do you know what are these elements called? In this lesson we will learn...

All matter is made up of atoms. Atoms are so tiny that they need to be magnified millions of times in order to be seen. However atoms are...

Just like solids, liquids can be impure. They can be removed through different methods according to their properties. Do you know what...

Some substances have impurities added in them which changes their physical properties. However, these impure substances can be removed....

Have you ever seen how an ice cream melts? Matter is something that has mass and occupies space. According to the kinetic particle...

Diffusion is the net movement of molecules from higher concentration to lower concentration. All molecules diffuse except for water...

Catalysts are the substances that speed up a chemical reaction but remain unchanged at the end of the reaction. Do you know what speeds...

Heart is an important organ in our body. It is located on the middle left-side of the chest. Well heart's important job is to pump blood...

Living organisms require energy to perform different activities such as growing, moving and development. Do you know where this energy...

We have studied the difference between physical and chemical changes. In this lesson we would study how we can define the occurrence of a...

Physical changes are those changes which are reversible. Chemical changes are those changes which are irreversible. Reversible changes...

The hypothesis that matter was made out of atoms, needed a lot of experimental evidences. French Chemist, Antoine Lavoisier carried out...