Science: Materials & Chemical Reactions Quiz

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This is a reviewer test for Mathayom M3/1 - ST23202 - Supplementary Science 6

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Niño Solano

Tailandia

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Science: Materials & Chemical Reactions Quiz


Science: Materials & Chemical Reactions QuizVersión en línea This is a reviewer test for Mathayom M3/1 - ST23202 - Supplementary Science 6 por Niño Solano 1 Which process causes iron to slowly form a reddish coating when exposed to air and moisture? a precipitation b polymerization c rusting d combustion 2 When ice turns into liquid water without forming a new substance, it is a a chemical change b combustion c physical change d chemical reaction 3 Which term refers to the substances formed after a chemical reaction? a materials b reactants c elements d products 4 Which process releases energy in the form of heat and light? a oxidation b physical change c exothermic reaction d endothermic reaction 5 Which material is best used to prevent electric shock in appliances? a insulator b metal c conductor d fiber 6 Cooking pots are usually made from materials that are a biodegradable b heat resistant c brittle d insulating 7 Which change does NOT involve forming a new substance? a spoilage of food b burning wood c cutting paper d rusting iron 8 During photosynthesis, oxygen and glucose are the a elements b products c reactants d pollutants 9 Which type of plastic cannot be remelted once it has hardened? a thermoplastic b thermoset c fiber d polymer 10 Which type of material breaks down very slowly and causes waste problems? a natural b biodegradable c renewable d non-biodegradable 11 Which property allows metals to be stretched into wires? a brittle b ductile c biodegradable d insulator 12 Which substance allows electric current to flow easily? a Polymer b Insulator c Conductor d Composite 13 Fiberglass is classified as a: a Composite b Metal c Polymer d Ceramic 14 Which material comes directly from plants or animals? a Renewable b Synthetic c Natural d Non-biodegradable 15 Which principle explains why mass is unchanged in a chemical equation? a law of attraction b law of conservation of mass c Law of Reflection d law of consuming of mass 16 Which pair correctly represents a chemical change? a ice → water b sugar → powder c glass → broken glass d iron → rust 17 Which process involves oxygen but does NOT produce flames? a Oxidation b Fermentation c Photosynthesis d Combustion 18 When two clear liquids form a solid after mixing, the reaction is called? a combustion b rusting c precipitation d fermentation 19 Which property makes glass unsafe for protective helmets? a malleable b brittle c ductile d lightweight 20 Which type of change is easiest to reverse? a physical change b chemical change c chemical reaction d chemical equation 21 Which reaction absorbs energy from its surroundings? a Combustion b Photosynthesis c Endothermic d Exothermic 22 Acid rain forms mainly because of a natural evaporation b photosynthesis c polymerization d pollutants in the air 23 Which material best demonstrates combined strength and lightness? a Ceramic b Metal c Fiberglass d Porcelain 24 Which statement is TRUE about metals? a They are good conductors of heat and electricity b They are the strongest materials c They are poor conductors of heat and electricity d They are always brittle and heavy 25 Food spoilage occurs because of a Rusting b Digestion c Physical change d chemical change 26 Which material property is MOST important for oven trays? a Brittle b Lightweight c Durable d Heat resistant 27 A monomer is a a finished plastic product b the process of combining molecules to form a larger molecule c a small unit that forms a polymer d a type of plastic 28 Polymerization is the process of a breaking compounds b forming elements c cooling plastics d joining monomers to form polymers 29 Which material choice best reduces environmental impact? a thermoset plastic b synthetic fiber c biodegradable material d non-biodegradable material 30 Which material would be the WORST choice for making a helmet? a Fiberglass b brittle material c durable plastic d composite 31 Which packaging material is MOST eco-friendly? a aluminum foil b thermoset plastic c synthetic polymer d biodegradable fiber 32 During combustion, why does mass seem to disappear? a mass is destroyed b mass becomes liquid c gases escape into the air d reactants vanish 33 Which material should be reduced to lower pollution? a non-biodegradable materials b renewable materials c biodegradable materials d composite materials 34 Why are ceramics heated in a kiln? a to make them flexible b to make them strong and durable c to make them conductive d to make them biodegradable 35 Which property is MOST important for making coins? a brittle b natural c malleable d heavy 36 Why are composites often used in construction? a They are strong but lightweight b They are strong and expensive c They are easy to rust d They are brittle and conductor 37 Which process contributes MOST to air pollution? a Digestion b Photosynthesis c Combustion d Precipitation 38 Which material should NOT be used as an electrical insulator? a Rubber b Plastic c Metal d Ceramic 39 Which action best supports sustainability? a increasing waste b burning plastics c use renewable materials d Produce more composites 40 Why are polymers widely used in daily life? a They are lightweight and durable b They are always natural and cheap c They conduct electricity well d They are expensive

Science: Materials & Chemical Reactions Quiz

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Science: Materials & Chemical Reactions QuizVersión en línea

por Niño Solano

Which process causes iron to slowly form a reddish coating when exposed to air and moisture?

When ice turns into liquid water without forming a new substance, it is a

Which term refers to the substances formed after a chemical reaction?

Which process releases energy in the form of heat and light?

Which material is best used to prevent electric shock in appliances?

Cooking pots are usually made from materials that are

Which change does NOT involve forming a new substance?

During photosynthesis, oxygen and glucose are the

Which type of plastic cannot be remelted once it has hardened?

Which type of material breaks down very slowly and causes waste problems?

Which property allows metals to be stretched into wires?

Which substance allows electric current to flow easily?

Fiberglass is classified as a:

Which material comes directly from plants or animals?

Which principle explains why mass is unchanged in a chemical equation?

Which pair correctly represents a chemical change?

Which process involves oxygen but does NOT produce flames?

When two clear liquids form a solid after mixing, the reaction is called?

Which property makes glass unsafe for protective helmets?

Which type of change is easiest to reverse?

Which reaction absorbs energy from its surroundings?

Acid rain forms mainly because of

Which material best demonstrates combined strength and lightness?

Which statement is TRUE about metals?

Food spoilage occurs because of

Which material property is MOST important for oven trays?

A monomer is

Polymerization is the process of

Which material choice best reduces environmental impact?

Which material would be the WORST choice for making a helmet?

Which packaging material is MOST eco-friendly?

During combustion, why does mass seem to disappear?

Which material should be reduced to lower pollution?

Why are ceramics heated in a kiln?

Which property is MOST important for making coins?

Why are composites often used in construction?

Which process contributes MOST to air pollution?

Which material should NOT be used as an electrical insulator?

Which action best supports sustainability?

Why are polymers widely used in daily life?