Aluminum Leslie's Cube, 10 cm Sides Meters_Electrical LDPE wash bottle with a

LDPE wash bottle with a two-color isopropanol identification label

The waves generate nodes & antinodes & their full wave length or half wave length can be measured

Demonstrates the metamorphic end-stage of coal maturation

this ball bearing roller coaster kit demonstrates potential and kinetic energy conversion plus forces and motion concepts

and penile root anatomy

Aluminum Leslie's Cube, 10 cm Sides Meters_Electrical LDPE wash bottle with aDemonstrates how surface finish affects thermal radiation, comparing the blackened, roughened, varnished, and polished faces of a water heated metal cube with an infrared sensor.