US$ 109.99
filled with iron filings whose alignment renders 3D field lines around any bar magnet up to 0
supporting detailed cardiac anatomy coursework
or Meker burners
landing it back in the same barrel as the car rolls forward
the candy-bar form letting students break each piece into smaller magnets that retain their own north and south poles
Rubber Vinyl Lab Apron, Medium Science at Home_Physical Science filled with iron filings whoseRubberized vinyl halter bib apron in medium, providing waterproof, chemical resistant protection for chemistry, dissection, and art room work.
US$ 109.99
US$ 334.50
US$ 109.99
US$ 249.50