Page 130 - ICSE Science 3 : E-book
P. 130

Renewable sources of energy: The energy               Solvent: The substance into which a solute
                    sources that can be used again and again              dissolves
                    Reproduce: Ability to produce living beings of        Sources of energy: The resources from which
                    its own kind                                          we get energy

                    Resource: Something that is available for use         Stirring: Mixing thoroughly a substance with a

                    Respiratory system: The body system that deals        liquid using a spoon
                    with breathing
                                                                          Stomata: Small openings that are present on
                    Ribcage: Structure of bones (called ribs) that        the under surface of a leaf
                    surrounds and protects the chest

                                                                          Taproot: The single main root that grows
                    Seed coat: Tough and hard outer covering of           straight downwards from the base of the stem
                    the seed
                                                                          Tendril:A thin curling stem that a climbing plant
                    Sepal: The green part of a flower that lies under     uses to attach itself strongly to the support
                    the petals
                                                                          Thorax: The middle portion of an insect's body
                    Shoot: The parts of the plant that grow above
                                                                          that bears the legs and wings
                    the ground
                                                                          Trunk: The thick main woody stem of a tree
                    Skull: A bony structure that surrounds and
                    protects the brain
                                                                          Veins: A number of tiny channels in the form of
                    Social insects:Insects that live with other insects
                    of their kind in a large well-organised colony        lines that run over the leaf's surface
                    Solar energy: The energy that we get from the         Volume: The amount of space that a liquid fi lls
                    sun                                                   in a container

                    Solids: Substances that are usually hard, and
                    have a fi xed shape and size                          Water cycle: The continuous movement of
                                                                          water between the sky and the earth
                    Soluble impurities: Impurities that are soluble
                    in water                                              Water purifi cation: The process of removing

                    Soluble substances: Substances that dissolve          harmful substances from water to make it fi t
                    completely in water                                   and safe for drinking

                    Solute: The substance which dissolves                 Wind energy: The energy obtained from the
                                                                          moving air
                    Solution: A solution is formed when two or more
                    substances of the same kind mix or dissolve           Windpipe: An air passage that carries air from
                    completely.                                           the nose to the lungs in the body













                  116
   125   126   127   128   129   130   131   132   133   134   135