Glowing of platinum in a burner flame: a physical change Animation Play

Graphs of periodic functions Whiteboard exercise Play

Graphs of periodic functions – changing the period Student activity Play

Group 14 Animation Play

Group trends Student activity Play

Group trends Animation Play

Groups in the periodic table Whiteboard exercise Play

Groups in the periodic table Illustration Play

Groups in the periodic table Student activity Play

Groups in the periodic table Student activity Play

Guidelines for reading and writing thermochemical equations Animation Play

Halide anions Animation Play

Halogens. Group 17 Class activity Play

Halogens. Group 17 Whiteboard presentation Play

Hess's law Student activity Play

High and low water Student activity Play

High and low water Whiteboard exercise Play

How did the atmosphere form? Student activity Play

How do indicators work? Student activity Play

How human activities change the natural environment Student activity Play

How human activities change the natural environment Whiteboard exercise Play

How humans change the natural environment Simulation Play

How humans shape the natural environment Student activity Play

How is light refracted in a glass of water? Animation Play

How plastics change when heated Animation Play