| A | B |
|---|
| What causes a magnetic field? | a spinning electron |
| how does the earth leave mermanent records with its magnetic field? | cooling of molten lava that contain iron line up in the direction of the earths magnetic field |
| what is the name of glowing regionsin the atmosphere form the sun? | auroras |
| draw interaction of 2 magnets north and south | arrows going from north to south |
| ALNICO stands for ______ | aluminum, nickel, iron, cobalt |
| what is it called when a grouping of atoms are aligned | magnetic domain |
| what is it called when magnetic poles move? | magnetic variation |
| who discovered magnets? | ancient greeks |
| what protects us from the suns harmful rays? | magnetosphere |
| MRI stands for | magnetic resonance imaging |
| what are the areas of high speed elecrons | van allen belts |
| where is a magnets force the strongest | at the poles; where the lines are closest |
| how can magnets be destroye | hit, striked, heated |
| what is the angle of poles | magnetic declination |
| what are most common magnets made of? | ferrite |
| what is the area of magnetic force | magnetic field |
| what is a magnetic with strong magnetic properties? | ferromagnetic |
| what is in the core of the earth | iron |
| what are harmful rays from the sun | solar winds |
| what is the symbol for iron | fe |
