Water Pollution Based on source of pollution, the following types of water pollution are recognised Water pollution due to city […]
Categories
Tag: SS2 ONLINE STUDY
Categories
SOURCES AND TYPES OF WATER
In the Earth’s biosphere, water is essential to all forms of life. Interestingly, it is also the biospheres most abundant […]
WIND INSTRUMENTS Clarinets, flute, saxophone, trumpet are examples of wind musical instruments. A musical note originates from a source vibrating in […]
Categories
Sound wave
Sound waves are produced by vibrating objects. Some of the source of sound are talking, shouting, beating, beating drums, blowing […]
Categories
Determination of refractive index
Production of pure Production of impure spectrum White light has a band of wavelengths of different colours. This is called […]
Categories
Optical Instruments
The Compound Microscope The Astronomical Telescope The Human Eye THE COMPOUND MICROSCOPE The compound microscope produces a greater magnification than […]
LENSES Lenses are used as magnifying glasses. They are also used in microscopes, telescopes, cameras and projectors. The human eye […]
REFRACTION THROUGH TRIANGULAR AND RECTANGULAR PRISM Triangular prism Rectangular prism Angle of deviation Real and apparent depth Triangular prism When […]
Humidity It is the water vapour content in the atmosphere. If there is high percentage of water in the air, […]
Categories
Boiling and Melting/Freezing point
Boiling Point Meaning of Boiling Point Boiling happens at a particular temperature and pressure, the temperature of the liquid remains […]