Consumers - Feed in organic matter, Decomposers - Breakdown organic matter, Producers - Manufacture organic matter, Infrared - Electromagnetic wave with thermal effect, ultraviolet ray - Source from the sun that promote synthesis of vitamin D, ultrasound - Frequency above 20000Hz, infrasound - below 20Hz. To detect earthquake. Strong penetration power , radiowaves - frequency used in communication , radio and TV broadcast, gamma ray - electromagnetic waves with the highest frequency and shortest wavelength , amplitude - magnitude of vibration, sound intensity, Hertz (Hz) - Unit for frequency of vibration per second , hard water - water that contain a lot of calcium and magnesium compounds, boiler scale - is form on the surface of heating element and inner surface of kettle/heater, boiling - to soften hard water and to kill microorganisms in water, distillation - to obtain pure water, filtration - remove suspended solid particles in water , non-renewable resources - Resources that can used up, limited and cannot replace in short time., Renewable resources - unlimited resources, can be replaced and recycled, coal - black and hard rocks, fractional distillation - to refine crude oil(petroleum) into different liquids with different boiling points ,
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J3 C9 to 11
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