A magnetic field is invisible ... different positions in the magnetic field, marking the needle direction each time join the points to show the field lines The needle of a plotting compass ...

1. Which end of a magnet will the north pole of a compass point towards when it lines up with the magnetic field? The part of a compass that moves around to show the magnetic field is called the ...

is the point in the Northern Hemisphere where Earth's magnetic field lines point directly into the planet. The complex motion of the outer core causes the magnetic north pole to shift tens of ...

the angle at which magnetic field lines intersect the Earth. The turtles use these two pieces of information, which vary at every point on the planet's surface, as navigational markers that help ...