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Magnetite, Fe3O4 (Black Iron Oxide 99%)
High-purity synthetic magnetite powder for pigments and water treatment.
Set of 10 Plastic Propellers
Includes durable propellers, varied sizes, STEM-friendly, colorful designs
Electric Generator, Hand Cranked With Clear Shell, Educational
Clear shell generator for educational demonstrations, hand-cranked.
Uv Sensitive Beads (Assorted Colors, 150 Beads)
Color-changing beads detect UV light and test UV products.
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