When lava hardens into rock what happens to the magnetic crystals in therock

When lava hardens into rock minerals are formed. These minerals are the magnetic crystals then align themselves to the magnetic field of the earth.

Explanation:

They get locked in the magnetic field as very  small tiny compasses that is crystals behave as magnets.

These crystals loses its magnetism only if it is heated above the curie point which is the temperature at which the magnet loses its magnetism.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error