Ventilation Demonstration Apparatus, 8.7 x 6.5 x 4" Capacity_50mL Diamond lattice kit with 39

Diamond lattice kit with 39 carbon atoms and 60 connectors for building the tetrahedral covalent network that gives diamond its exceptional hardness and optical properties

varying length isolating density as the single variable across materials

Ninety-five-piece molecular model set with 53 atoms and 42 links spanning organic and inorganic chemistry

and a candle holder

lets students compare how line density per unit length controls the spacing of the resulting interference pattern

Ventilation Demonstration Apparatus, 8.7 x 6.5 x 4" Capacity_50mL Diamond lattice kit with 39Large format 8. 7 by 6. 5 by 4 inch ventilation apparatus modeling historic mine gallery airflow and domestic chimney convection through a candle driven hot air rise demonstration.