simple machines

123456
Across
  1. 3. IT HAS A TRIANGULAR SHAPE
  2. 4. IT CONNECTS A LOW LEVEL TO A HIGHER LEVEL
  3. 6. A RIGID BAR RESTING ON A SUPPORT
Down
  1. 1. IT IS MADE OF A WHEEL AND A ROPE TO LIFT OBJECTS
  2. 2. IT IS MADE OF A ROUND OBJECTS ATTACHED TO A POST
  3. 5. AN INCLINED PLANE WRAPPED AROUND A CENTER POST