Page 59 - ICC Science Dictionary (spreads)
P. 59

Word            Definition                          Topic(s)                          Word            Definition                          Topic(s)

         small           Upper part of the intestine where   TB4                               speciation      The formation of new and distinct   B6
         intestine       digestion is completed and nutrients                                                  species in the course of evolution.
                         are absorbed by the blood.                                            species         A type of organism that is the      TB2, TB6, B6,
         smog            A type of air pollution that        B7a, B7b,C9                                       basic unit of classification.       B7a, B7b
                         appears as a visible smoky fog                                                        Individuals of different species are
                         which is very harmful to health.                                                      not able to interbreed successfully.
         solar cell      A device that converts light        C5                                specific heat   The amount of energy needed to      P1, P3
                         energy into electrical energy                                         capacity        raise the temperature of 1 kg of
         solenoid        A straight coil of wire which can   TP3, P7                                           substance by 1°C.
                         carry an electric current to create                                   specific        The amount of energy needed to      P3
                         a magnetic field.                                                     latent Heat     melt or vaporise 1 kg at its melting
         soluble         A substance that will dissolve.     TC2, B2, C1,                                      or boiling point.
                                                             C4, C8, C9,                       spectator ion   An ion that is exactly the same on   C8
                                                             C10                                               both sides of an ionic equation.
         solute          The dissolved substance in a        TC2, B1a, B1b,                    spectroscope    Instrument used to measure          C8
                         solution.                           C1, C3, C4                                        properties of light, usually to
         solution        Mixture formed by a solute and a    TC2, 1a, B1b,                                     identify materials.
                         solvent.                            B2, C1, C3,                       spectrum        A series of similar waves arranged in  C8, P6
                                                             C4, C5, C6,                                       order of wavelength or frequency.
                                                             C7, C8, C10                       specular        Reflection in which light travelling   P6

         solvent         The liquid in which the solute      TC2,B1a, B1b,                     reflection      towards a surface in one direction
                         dissolves to form a solution.       C1, C3, C4,                                       is all reflected in a single direction.
                                                             C7, C8                            speed           How much distance is covered per  TP1, C8, P5, P8

         soot            The fine black particles, chiefly   C9                                                unit of time. Can be measured in
                         composed of carbon, produced                                                          metres per second (m/s), miles per
                         by incomplete combustion of                                                           hour or kilometres per hour.
                         coal, oil, wood, or other fuels.                                      spinal cord     The part of central nervous system   B1a, B1b
         south pole      In a magnet, the end that is attracted  P7                                            of a mammal which runs inside its
                         to the Earth's magnetic south pole.                                                   backbone
         specialised     A cell that has become differentiated  B1a, B1b                       split ring      Part of a dc electric motor that    P7
                         to carry out a particular function, eg                                commutator      reverses the direction of the
                         red blood cell.                                                                       current every half turn of the coil.
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