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    10.  A  student  performs  an  experiment  with  a        If the  correct  scientific  process  order  is
                         candle and writes the following steps:               followed, which option is correct?
                         (i)  Heat is released.                                                     (Algorithmic Thinking)

                        (ii)  Wax solidifies again.                                 (a)   (iii)   (v)   (iv) → (i) → (ii)
                        (iii)   Heat is applied to wax.
                                                                                    (b)  (iii) → (iv) → (v) → (i) → (ii)
                       (iv)   Wax liquid changes to vapour which burns.
                                                                                    (c)   (v) → (iii) → (iv) → (ii) → (i)
                        (v)   Wax melts into liquid.
                                                                                    (d)  (iii) → (v) → (i) → (iv) → (ii)

                                      A student observes the following phenomena:
                                      •  Ice melts faster on a metal plate than on a plastic plate.
                                      •  Wet clothes dry faster on a sunny day.
                                      •  Shadow length changes during the day.
                                      •  Plants bend towards the sunlight.
                                      He concludes:
                                        “Energy from the environment influences  both living and non-living systems in
                                      different ways.”
                                      Which reasoning best supports this conclusion?

                                             (a)  All changes are unrelated natural events.

                                             (b)   Energy (light and heat) causes observable patterns in matter and
                                                 living organisms.

                                             (c)  Only plants respond to sunlight.

                                             (d)  Shadows are independent of energy changes.

                     58        Computational Thinking-7 (Science)

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