Holiday Online Assessment Tests Junior Secondary Category Holiday Online Assessment Test – Junior Secondary 2-3 – Basic Science (Round 1) Posted on July 21, 2018 by solaugo / 0 Comment Welcome to your Holiday Online Assessment Test JS 2-3 - Basic Science (1st Round) The earth's layer where ozone is located is the A. atmosphere. B. mesosphere C. stratosphere D. thermosphere E. troposphere A B C D EA mounted hydrometer in a liquid is used to measure the liquid's A. depth. B. density C. heat capacity D. rate of flow E. volume A B C D EAccording to kinetic theory of matter, the force of attraction or repulsion between the particles of a gas are A. elastic B. large C. small D. strong. E weak A B C D ERefining of crude oil is carried out by the following multinational companies, except A. Agip. B Chevron. C. Elf. D. Texaco. E Total A B C D EA substance which dissolves in water to give hydrogen ion as the only positive ion is a/an A. acid. B. alkali C. atom D. base. E. salt A B C D EA tool that allows a force applied at one point to overcome a resisting force at another point is called a/an A. carrier. B. gadget C. machine D. organ E. uploader A B C D EThe ratio of work output to work input in a machine is called A. accuracy. B. efficiency. C. mechanical advantage D. mechanical ratio E. velocity ratio A B C D EWhich of these simple machines is an example of wheel and axle? A. bottler C. razor blade D. pair of scissors E. spoon A B C D EA machine has a velocity ratio of 5 and is 80% efficient calculate its mechanical advantage. A. 0.16 B. 1.40 C. 1.80 D. 2.00 E. 4.00 A B C D EThermal energy in liquid is transferred by A. conduction. B. convection. C. radiation. D. sublimation. E. vaporization A B C D ESteel is produced from A. Bessemer process. B. Destructive distillation. C. Fractional distillation D. Melting. E Mining A B C D EMetallic oxides dissolve in water to form A. acids B. alkalis. C. bases. D. ions. E. salts A B C D EIn which state in Nigeria is copper found? A. Benue B. Ebonyi C. Edo D. Enugu E. Ogun A B C D EThe unit of density is A. Kgm-1 B. Kg2. C. Kgm-2. D. Kg3 E. Kgm-3 A B C D E The diagram above is an experiment to show that air A. burns. B. expands. C. has mass. D. occupies space. E. has weight A B C D EDestructive distillation is a method used to separate the constituent of A. bitumen. B. coal C. crude oil D. petrochemical E. petroleum A B C D EThe S.1. unit of pressure is A. gcm-2. B. gcm-3. C. Kgm-2. D. Nm-2. E. Nm-3 A B C D EThe ray of light that strikes an object is called A. deviated ray B. emergent ray. C. incident ray D. reflected ray E. refracted ray A B C D EA sound of uniform vibration is called A. echo. B. noise C. note D. resonance E. tone A B C D EAn instrument used to vary the resistance in a circuit is a/an A. ammeter B. battery C. galvanometer. D. rheostat E. voltmeter A B C D EWhat force does the earth use to attract objects to its centre? A. Centrifugal B. Centripetal C. Frictional D. Gravitational E. Nuclear A B C D EThe mechanical advantage of a machine is A. effort/distance B. effort/load C. load/velocity D. effort/efficiency E. load/effort A B C D EWhich of the following is not a radioactive element? A. Radium B. Radon C. Sodium D. Thorium E. Uranium A B C D EWhich of the following objects emits beta, gamma and alpha particles? A. Moon B. Radium C. Rubidium D. Stars E. Sun A B C D ENaOH + HCI → NaCI + H2O base acid salt water The reaction represented by the above equation is A. acidification B. concentrated C. endothermic D. exothermic E. neutralization A B C D EAscorbic acid is found in A. grape B. lemon C. milk D. orange. E. vegetable A B C D EThe molecules in a gas are A. close together and revolving at random B. close together and stationary C. close together and vibrating D. far apart and moving at random E. far apart and stationary A B C D EThe gas that is liberated when metal react with dilute acid is A. carbon(iv)oxide. B. helium. C. hydrogen D. nitrogen E. oxygen A B C D EIron articles are often coated with paint to prevent A. burning B. electroplating. C. galvanizing D. greasing E. rusting A B C D EA screw is an example of A. axle B. inclined plane C. lever D. pulley system E. wedge A B C D EWhich of these animals give birth to its young ones alive? A. Lizard B. Pigeon C. Rat D. Tilapia E. Toad A B C D EHerbivorous animals feed on A. decayed matter. B. flesh only. C. plants only. D plant and animal E. sewage materials A B C D ERefuse comprises the following materials, except A. broken furniture B. empty can. C. human feaces D. kitchen wastes. E waste papers A B C D EThe respiratory organ in plant is the A. bud. B. flower C. stem D. stomata E. shoot A B C D EWhich part of the body is pinna located? A. Ear B. Head C. Mouth D. Neck E. Nose A B C D EUndigested food are removed from the body by A. circulation B. egestion C. excretion D. perspiration E. respiration A B C D EWhich of the following structure absorbs digested food materials? A. Artery B. Capillary C. Rectum D. Vein E. Villium A B C D EThe vitamin for bone formation is A. A B. B C. D D. E E. K A B C D EThe part of the brain that controls reasoning and intelligence in man is the A. fore brain B. head C. hind brain D. mid brain E medulla oblongata A B C D EWhich of the following is not an intelligence skill in man? A. Communication B. Inference C. Inquisitiveness D. Measurement E. Observation A B C D EScore board for Holiday Online Assessment Test - Junior Secondary 2-3 - Basic Science (Round 1) Share this:TwitterFacebookWhatsAppLinkedInTelegramSkype Holiday Online Assessment Test - Junior Secondary 2-3 - Basic Science (Round 1) solaugo View all posts by solaugo → Post navigation Older postHoliday Online Assessment Test – Junior Secondary 2-3 – Basic Technology (Round 1)Newer postHoliday Online Assessment Test – Junior Secondary 2-3 – English Language (Round 1) You might also like Leave a Comment Cancel replyYou must be logged in to post a comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.