Avogadro's number Animation Play

Avogadro's number (1) Student activity Play

Avogadro's number (1) Whiteboard exercise Play

Avogadro's number (2) Student activity Play

Avogadro's number (2) Whiteboard exercise Play

Axially symmetric figures Animation Play

Back-to-back stemplot Student activity Play

Back-to-back stemplot Whiteboard exercise Play

Bacteria and the energy sources Whiteboard exercise Play

Bacterial count Whiteboard exercise Play

Bacterial culture on a solid medium Animation Play

Bacterial diseases Class activity Play

Bacterial diseases Whiteboard presentation Play

Bacterial growth Class activity Play

Bacterial growth Whiteboard presentation Play

Bacterial growth in a batch culture Animation Play

Bacterial growth in a continuous culture Animation Play

Bacteriophage Whiteboard exercise Play

Bacteriophages Animation Play

Bacteriophages – bacterial viruses Slideshow Play

Bacteriostatic and bactericidal antibiotics Animation Play

Baking soda Animation Play

Baking with and without yeast Animation Play

Balance Student activity Play

Balance Simulation Play

Balance Whiteboard exercise Play

Balances Animation Play

Balancing chemical equations Animation Play

Balancing chemical equations Whiteboard exercise Play

Balancing chemical equations Whiteboard exercise Play