Energy Chains -Junior 4 - Grade 4 - скачать в хорошем качестве

Energy Chains -Junior 4 - Grade 4 -

Energy chain It is a way to describe or represent the energy flow that occurs when we use different devices. Energy chains often start with the sun Energy chain of eating food Light energy (from sun) to grow plants chemical energy (stored in plant)  kinetic energy (movement of human body) Energy Chain when heating a pot of water Light energy (from sun) to grow trees  chemical energy (stored inside trees) thermal energy (when burning wood of trees to heat the water inside the pot) Energy chain in hair dryer Light energy (from sun) to grow trees chemical energy (stored in coal from tree remains)  thermal and kinetic energy (in electric power stations)  electrical energy  thermal and sound energy (in hair dryer) Energy chain while riding bike Chemical energy stored in food  kinetic energy  thermal energy (tire friction with road) Energy chain in light bulb switched on Electric energy (in wires)  light and thermal energy (in light bulb) Energy chain in Mobile phone Electrical energy (when charging battery) chemical energy (stored in battery) sound and light energies