Living organisms life depends on the occurrence of chemical reactions inside their bodies , these reactions are called metabolism , Metabolism is necessary for growth , repairing the damaged tissues and obtaining the energy...
The mole Mole is the unit of the quality of matter in the International System of Units ( SI ) and it is defined by different ways according to the mole and mass of...
Science is an organized structure of knowledge that includes the facts, concepts, principles, laws, scientific theories and the organized method in the research and investigation, One of the main branches of science is the...
The nuclear energy All the elements consist of atoms, The atom consists of a nucleus surrounded by the electrons revolving around it in certain energy levels, The atom mass is concentrated in the nucleus that contains...
