Materials Needed : The materials needed for this introductory lesson is as follows: A. magnets of different sizes and shapes (bar, horseshoe, etc.) B. iron filings C. stand for holding two magnets with a string D. miscellaneous items;
(The materials; needed; for this introductory lesson) (The materials needed for this introductory lesson; is; as follows) (C.; stand; for holding two magnets with a string D. miscellaneous items)
The materials The materials needed for this introductory lesson C.
needed is stand
for this introductory lesson
as follows
for holding two magnets with a string D. miscellaneous items