Natural Gas Bunsen Burner with Cast Iron StabiliBase and Flame Stabilizer Subcategory_Power Supplies this bottle of coarse 20-mesh

this bottle of coarse 20-mesh iron filings is a staple for classroom magnetism and field-pattern demonstrations

supporting reproductive cell biology teaching

Millimeter-graduated 15cm Hooke's-Law scale on a 30cm support rod

closing a circuit by inserting the plug into the gap between the copper blocks

Shopping for someone else but not sure what to give them

Natural Gas Bunsen Burner with Cast Iron StabiliBase and Flame Stabilizer Subcategory_Power Supplies this bottle of coarse 20-meshFlame stabilizer paired with an anti tip cast iron base on this natural gas Bunsen burner, preventing blowouts while anchoring the unit against accidental classroom contact.