2 North, South, East and up are all .......... (10)
  6 When you join electrical wires and equipment together. (7)
  7 These devices can stop the flow of electricity in a circuit if desired. (8)
  8 Direction of rotation, the way you undo a screw lid. (13)
10 The ......... of a guitar string makes a sound. (9)
11 A material that lets electricity pass through. (9)
12 When you ........ a spring, you squeeze it. (8)

  1 An arrangement of wires and equipment that lets electricity flow around. (7)
  3 Used for measuring temperature. (11)
  4 Something has to do this to make sound. (7)
  5 When the air slows something down, such as a parachute. (3,10)
  9 Mars, Jupiter, Saturn and the Earth are these. (7)