5, 6 Time 15 to 25 minutes Materials glass of water eye dropper lichen samples microscope compass Procedure/Description * Use the compass to determine the direction that the side of the tree with the most lichen growth is pointing.
(6 Time 15 to 25 minutes Materials glass of water eye dropper lichen samples microscope compass Procedure/Description; Use; the compass; to determine the direction) (the direction; is pointing; the side of the tree with the most lichen growth)
6 Time 15 to 25 minutes Materials glass of water eye dropper lichen samples microscope compass Procedure/Description the direction
Use is pointing
the compass to determine the direction
the side of the tree with the most lichen growth