R |
| R.a.source americium 241 |
| R.a.source cobalt 60 |
| R.a.source strontium 90 |
| Red laser pointer, constant on/off, 650nm, Class II (<1MW) |
| Replacement Power Supply for LED Mains Ray Box |
| Resistance Wire - Nichrome 0.4 mm |
| Resistance Wire - Nichrome 0.63 mm |
| Resistance Wire - Nichrome 0.8 mm |
| Resistance Wire - Nichrome 1.0 mm |
| Resistivity Wire - Brass |
| Resistivity Wire - Constantan |
| Resistivity Wire - Manganin |
| Resistivity Wire - Nichrome |
| Retort Bases - 200 X 125mm |
| Retort Base A-Shape |
| Rheostat 1600ohm |
| Zinc Plated Retort Rod - 1000mm |
| Round bottom flask 2lt |
| Rubber Bands |
| 0.5m Wooden Rule - Horizontal |
| Wooden Rule 1m - Horizontal - mm |
| 1m Wooden Rule - Vertical |
| 300mm Clear Plastic Rule |
