254 ViewsTHE CIRCULATORY SYSTEM   Blood Components and Functions Blood is a liquid connective tissue, which is maintained in constant circulation…

216 ViewsDIGESTIVE SYSTEM  PARTS OF THE DIGESTIVE SYSTEM The digestive system consists of the alimentary canal, which is a long…

363 ViewsSIMPLE MACHINE  Definition of Simple Machine A machine is a tool or device that makes work easier. It is…

193 ViewsSIMPLE CHEMICAL EQUATIONS   If the law of conservation of matter is to be kept, it means that there must…

230 ViewsCHEMICAL SYMBOLS AND FORMULAE   SYMBOLSOFELEMENT An element is a substance which consists of only one kind of matter Over…

344 ViewsRADIOACTIVITY   Meaning of Radioactivity Radioactivity is the spontaneous disintegration or breaking down of the nucleus of an atom which…

202 ViewsELEMENTS, COMPOUND AND ATOMIC STRUCTURE   Element An element is a substance which cannot be further divided into simpler substances. …

266 ViewsABORTION   Meaning of abortion Abortion is the deliberate termination of a human pregnancy, most often performed during the first…

279 ViewsTEENAGE PREGNANCY  Teenage pregnancy refers to pregnancy in a girl between the ages of 10-19. Teenage pregnancy is usually…

188 ViewsSKILL ACQUISITIONS   Meaning of Skill Acquisition A skill is a special ability acquired through training in order to do…