مراجعة ( Science ) الصف السادس الابتدائي – الترم الاول 14 مراجعة ( Science ) الصف السادس الابتدائي – الترم الاول 1 / 52 - Choose the correct answer :-The ..... protects the spinal cord skull backbone femur humerus 2 / 52 - Choose the correct answer :-Human rib cage protects the ..... lungs & heart heart spinal cord lungs 3 / 52 - Choose the correct answer :-Human backbone consists of ..... vertebra 43 31 12 33 4 / 52 - Choose the correct answer :-Femur bone belongs to the bones of ..... upper limbs lower limbs axial skeleton backbone 5 / 52 - Choose the correct answer :-All the following systems participate in the process of movement except the ..... nervous system skeletal system digestive system muscular system 6 / 52 - Put (true) or (false) :-The number of cranial nerves is 31 pairs ( ) true false 7 / 52 - Choose the correct answer :-The spinal cord is responsible for ..... thinking the reflex action the boy's balance movement 8 / 52 - Choose the correct answer :-The number of spinal nervese ..... pairs 16 11 12 31 9 / 52 - Choose the correct answer :-The ..... controls the voluntary movements such as runing in a race cerebrum medulla oblongata cerebellum spinal cord 10 / 52 - Choose the correct answer :-Keeping the body balance during movement is the function of the ..... cerebellum cerebrum medulla oblongatag spinal cord 11 / 52 - Choose the correct answer :-..... connect (s) the brain with the spinal cord the cerebrum the cerebellum medulla oblongata axon terminal 12 / 52 Nitrogen is very important gas as it forms protein substance true false 13 / 52 - Put (true) or (false) :-The percentage of nitrogen in the atmosphere is 78% ( ) true false 14 / 52 - Put (true) or (false) :-Nitrogen gas reacts with most other elements ( ) true false 15 / 52 - Put (true) or (false) :-Nitrogen gas is used in filling some kinds of lamps ( ) true false 16 / 52 - Choose the correct answer :-Nitrogen is used to make ..... thermometer steel soft drinks ammonia 17 / 52 - Choose the correct answer :-..... is a gas used in filling car tires Oxygen Nitrogen Carbon dioxide Hydrogen 18 / 52 - Choose the correct answer :-..... gas contributes in composing gunpowder Nitrogen Water vapor Hydrogen Oxygen 19 / 52 increase of oxygen in air raises the temperature of the Earth true false 20 / 52 carbon dioxide gas is used in making dry ice and soft drinks true false 21 / 52 - Put (true) or (false) :-The increase of carbon dioxide percentage in the atmosphere due to cutting trees ( ) true false 22 / 52 - Put (true) or (false) :-Passing Co2 in clear lime water form black substance ( ) true false 23 / 52 - Put (true) or (false) :-Carbon dioxide is used in extinguishing fires ( ) true false 24 / 52 Put true or false :-The gas which turns lime water turbid is carbon dioxide gas True False 25 / 52 - Choose the correct answer :-Photosynthesis process in the plant depends on the presence of .... carbon dioxide nitrogen ozone oxygen 26 / 52 - Choose the correct answer :-Carbon dioxide is used in the manufacture of ..... electronic devices soft drinks fertilizers ammonia 27 / 52 - Choose the correct answer :-..... is used to prepare carbon dioxide nitrogen hydrogen peroxide calcium carbonate and hydrochloric acid manganese dioxide 28 / 52 - Put (true) or (false) :-Photosynthesis is the only source of oxygen on earth ( ) true false 29 / 52 oxygen gas doesn't burn and doesn't help in burning true false 30 / 52 - Put (true) or (false) :-Oxygen gas reacts with the burning magnesium forming a black powder ( ) true false 31 / 52 - Choose the correct answer :-The gas that forms 0.03 % of air is ..... nitrogen water vapour carbon dioxide oxygen 32 / 52 - Choose the correct answer :-Process of respiration and burning of the digested food need ..... gas oxygen water vapour nitrogen hydrogen 33 / 52 - Choose the correct answer :-Ozone gas consist of ..... atom of oxygen 4 1 2 3 34 / 52 - Choose the correct answer :-Oxygen exists in the atmosphere in a gaseous state in the form of molecules and its structure is ..... O O2 O3 O4 35 / 52 ethyl alcohol is the liquid that is used in the manufacture of medical thermometer true false 36 / 52 - Put (true) or (false) :-The scale of the Celsius thermometer starts from 35 C to 42 C ( ) true false 37 / 52 - Put (true) or (false) :-Each degree in the medical thermometer is divided into 3 parts ( ) true false 38 / 52 - Choose the correct answer :-The clinical thermometer is differentiated from the Celsius thermometer by the presence of ..... glass bulb capillary tube constriction all answers are true 39 / 52 - Choose the correct answer :-Temperature of the human body is measured by the ..... clinical thermometer thermostat all answers true Celsius thermometer 40 / 52 - Choose the correct answer :-Mercury is characterized by that ..... it expands regularly by heating it contracts by heating it expands irregularly by heating all answers are false 41 / 52 - Put (true) or (false) :-The form of energy that transfers from an object of high temperature to an object of low temperature is called the heat energy ( ) true false 42 / 52 Heat always transfers from the cold object to hot object true false 43 / 52 - Choose the correct answer :-When you touch a cup of hot tea ..... heat transfers from the cup to the hand , , ) heat transfers from the hand to the cup heat does not transfer no correct answer 44 / 52 - Choose the correct answer :-An indicator helps us to express the state of a body hotness or coldness ..... heat iron wood temperature 45 / 52 - Choose the correct answer :-All the materials are bad conductors of heat except ..... wood plastic rubber iron 46 / 52 - Choose the correct answer :-All the material are good conductors of heat except ..... iron rubber aluminium copper 47 / 52 - Put (true) or (false) :-Mass is measured by a common balance ( ) true false 48 / 52 - Put (true) or (false) :-Mass changes by changing the position ( ) true false 49 / 52 - Choose the correct answer :-The weight of the object that is 40 kg equals ..... 40 N 400 N 4 N 4000 N 50 / 52 - Choose the correct answer :-The device that is used for measuring weight is ..... one arm scale two arm scale digital scale spring scale 51 / 52 - Choose the correct answer :-If the weight of an object is 2 N , then its mass is ..... ) 100 gm 20 gm 300 gm 200 gm 52 / 52 - Choose the correct answer :-If the mass of an object on the moon = 60 kg then its weight on the earth = ..... 60 N kg 60 100 N 600 N نتيجتك هي اظهر المزيد
