Non-Vented Wide Mouth LDPE Squeeze Rinse Wash Bottle for Plant Watering, 500mL Subcategory_Health and Genetics and iron rods for linear-expansion

and iron rods for linear-expansion comparison

Octagonal-base Meker burner running on natural gas delivers a high-temperature grid flame for chemistry ashing

Hand-crank centrifuge spins two 15mL tubes with a bench-top clamp mount for teaching sedimentation and separation concepts without needing electricity

Single-decade resistance box stepping from 1k ohm to 10k ohms in 1k-ohm increments on a rotary dial

offering a larger bore than narrower models for higher-volume bench-to-bench fluid runs

Non-Vented Wide Mouth LDPE Squeeze Rinse Wash Bottle for Plant Watering, 500mL Subcategory_Health and Genetics and iron rods for linear-expansionBuilt for plant and succulent watering, this 500mL wide mouth LDPE squeeze rinse bottle features a non vented cap for controlled directed dispensing.