Radioactive decay of Krypton-91 Whiteboard exercise Play

Radioactive series Student activity Play

Radioactive series Whiteboard exercise Play

Radioactive substances Animation Play

Radioactivity Animation Play

Radioactivity Student activity Play

Radiocarbon dating Student activity Play

Radiocarbon method and scintigraphy Whiteboard exercise Play

Radiocarbon method and scintigraphy Animation Play

Radiocarbon method and scintigraphy Student activity Play

Rate of radioactive decay Animation Play

Reflection of light at a smooth surface Animation Play

Reflection of plane waves Animation Play

Reflection of plane waves Student activity Play

Reflectors Whiteboard exercise Play

Reflectors Student activity Play

Relationships between voltage and current Animation Play

Resistance Glossary Play

Resistance Student activity Play

Resistors Whiteboard presentation Play

Resistors Class activity Play

Roots and the index law for the power of a power Animation Play

Simulation Student activity Play

Simulation of force measurement Simulation Play

Standard enthalpy change. Hess’s law Class activity Play