US$ 69.99
Plastic-cased solar energy kit with a panel
Standard rheostat at 280 ohms and 1
Pack of low-form borosilicate 3
or Meker burners
paired with electroscopes and pith balls in classic electrostatic-charging investigations
Free-Standing Plant Cell Model, 10.5 x 8.5", Magnified Capacity_25mL Plastic-cased solar energy kit withFree standing plant cell model displays greatly magnified organelle detail for student directed rotation and inspection in cell biology coursework.
US$ 69.99
US$ 21.99
US$ 167.50
US$ 30.25
US$ 99.95