Iron and steel objects can be attracted by a ( ) but aluminum cannot., battery, magnet, A ( ) is used to give an electric current., battery, magnet, Steel, iron, gold, aluminum, ( ), graphite and saltwater are good conductors of electricity., copper, wood, Steel, iron, gold, aluminum, copper, graphite and saltwater are ( ) conductors of electricity., poor, good, Rubber, wood, paper, ( ), glass and air are poor conductors of electricity., steel, plastic, ( ), wood, paper, plastic, glass and air are poor conductors of electricity., steel, rubber, To conduct electricity, we use an electric wire which is made of a metal wire on the inside covered by( ) so that we do not get electrified., plastic, wood, Objects made of wood, plastic or wax ( ) in water., float, sink, Objects made of wood, ( ) or wax float in water., plastic, stones, Objects made of rock, ( ), glass and salt sink in water., metal, plastic, Objects made of rock, metal, glass and salt ( ) in water., sink, float, Oil ( ) on water. , sinks, floats, Syrup ( ) in water., sinks, floats, A flashlight helps you tell whether an object is dull or ( ). , shiny, dull, A shiny surface (such as aluminum, copper, gold and glass). ( ) light., shiny, reflects, The reflection of light cannot be seen on ( )surfaces such as wood, candle, rubber, cardboard paper., dull, shiny, ( )and shininess are physical properties., reaction, floating, Floating and shininess are ( ) properties., physical, chemical, Units of mass are the gram and the ( ), which is 1000 grams., kilogram, loud, Units of mass are the ( ) and the kilogram, which is 1000 grams., gram, soft, The temperature of ice is ( ) degrees Celsius., 0, 100, The temperature of your body is normally ( ) degrees Celsius., 37, 100, The temperature of ( ) water is 100 degrees Celsius., cold, boiling, The temperature of boiling water is ( ) degrees Celsius., 0, 100, Light is a form of ( ) that can be seen., energy, food, A light ( ) is an object that gives light., travel, source, ( ) is our most important source of light, sun, candle, Light helps ( ) see., people, plants, Light helps ( ) grow., people, plants, Light travels ( ) from its source in straight lines., away, close, Light travels away from its source in straight ( ) ., lines, rounds, Light ( ) is the bouncing of light off a surface., reflection, absorb, When light hits a ( ), it bounces off or reflects in a new direction., mirror, ball, When light hits a mirror, it bounces off or ( ) in a new direction., reflects, absorbs, When light passes from one material into another, it ( ), like light travelling from air into water., refracts, reflects, When light passes from one material into another, it refracts, like light travelling from air into ( )., fire, water, A hand ( ) makes objects look larger because it refracts light., lens, fingers, A hand lens makes objects look larger because it ( ) light., reflects, refracts, Some objects ( ) light energy and become warm, like a car standing in the sun., absorb, reflect, Some objects absorb light energy and become ( ), like a car standing in the sun., cold, warm, ( ) objects reflect all colours of light., white, black, White objects reflect all colours of ( ) ., light, sound, We see objects when light reflected off them enters our ( )., eyes, ears, An opaque object does not allow light to pass through it, like a stone ( )., water, wall, When an opaque object blocks light, a ( ) is formed., candle, shadow, A ( ) object allows light to pass through it, like a pane of glass., transparent, translucent , A transparent object allows light to pass through it, like a pane of ( ) ., wood, glass, Translucent objects allow ( ) light to pass through e.g. wax paper, frosted glass., some, all, Objects seen through ( ) materials look blurred., transparent, translucent, To ( ) means to move back and forth quickly., vibrate, eat, Sound travels ( ) from the sound sources in all directions., away, close, ( ) is how loud or soft a sound is. A hard knock makes a loud sound., volume, pitch, ( ) is how high or low a sound is. A whistle sound has a [high] pitch., volume, pitch, ( ) can travel through gases (like air), liquids (like water) or solids (like the ground)., sound, people, Sound can travel through ( ) (like air), liquids (like water) or solids (like the ground)., gases, people, Sound can travel through gases (like air), liquids (like water) or ( ) (like the ground)., sound, solids, The sound made by a whistle travels through ( )., air, water, The sound made by a ( ) travels through air., water, whistle, You can ( ) sound coming through solid walls or doors., see, hear, You can hear sound coming through ( ) walls or doors., liquid, solid, All loud sounds including music damages our inner ( ) and cause hearing loss., ears, eyes, All loud sounds including music damages our inner ears and cause ( ) loss., eyesight, hearing, Wear ( ) to protect your ears against loud sounds., sunglasses, earplugs, Wear earplugs to protect your ears against ( ) sounds., loud, soft.

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