ALP | SCIENCE-8 | CH-10 : REACHING THE AGE OF ADOLESCENCE

ALP | SCIENCE-8 | CH-11 : FORCE AND PRESSURE

ALP | SCIENCE-8 | CH-14 : CHEMICAL EFFECTS OF ELECTRIC CURRENT

ALP | SCIENCE-8 | CH-17 : STARS AND THE SOLAR SYSTEM

ALP | SCIENCE-8 | CH-18 : AIR POLLUTION AND WATER POLLUTION