crust, the outer layer of Earth, mantle, hot layer of rock under the crust, outer core, liquid metal layer inside Earth, inner core, solid metal centre of Earth, liquid rock, melted rock underground, metal, hard material like iron, layer, one part of something, Inner core, ............ is solid metal., mantle, ............contains hot liquid rock., sphere, Earth is shaped like a ............ round ball shape, conductor, lets electricity pass through, insulator, does not let electricity pass, circuit, a path for electricity, lamp, gives light in a circuit, cell, provides electrical energy, wire, carries electricity, glow, produce light, lamps, More _________ → less bright., cells, More _______ → brighter lamps., metals, are usually conductors., less, More lamps → ________ bright., brighter, More cells → _________ lamps., copper, Conductors, cork, Insulators.

Science 3

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