Earth's magnetic field

Universe

All space and matter

Earth

The planet on which we live; the world

Sun

the star around which the earth orbits

Milky Way Galaxy

large spiral system of about several hundred billion stars, one of which is the Sun.

Solar System

the collection of eight planets and their moons in orbit around the sun

Solar Neighborhood

the region surrounding our Sun, including stars that were formed from the same galactic material.

Magnetosphere

he region surrounding the earth or another astronomical body in which its magnetic field is the predominant effective magnetic field.

Non Contact Force

a force which acts on an object without coming physically in contact with it

Magnet

a piece of iron (or an ore, alloy, or other material) that has its component atoms so ordered that the material exhibits properties of magnetism, such as attracting other iron-containing objects or aligning itself in an external magnetic field.

Dipolar

having equal and opposite electric charges or magnetic poles

Magnetism

a physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.

Magnetic field lines

imaginary lines, which depict the strength and direction of the magnetic field.

iron filings

small particles of iron produced by filing or a similar mechanical process.

Electromagnet

a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.

Electric current

a flow of charged particles, such as electrons or ions, moving through an electrical conductor or space.

Electromagnetic

relating to the interrelation of electric currents or fields and magnetic fields.