Science 1 / 3 Why is the sky blue? Because Color is blue The earth is surrounded by an atmosphere. Earth Is blue Eye light 2 / 3 Which bird can rotate its head in a complete circle? owl parrot duck 3 / 3 Which of the following is used in pencils? Graphite Silicon Charcoal Your score is The average score is 2% LinkedIn Facebook Twitter VKontakte 0% Restart quiz