Autotrophs and heterotrophs Slideshow Play

Bacteria and the energy sources Whiteboard exercise Play

Balance of matter and energy in the environment Slideshow Play

Balance – differences between energy input and energy output Student activity Play

Balance – differences between energy input and energy output Whiteboard exercise Play

Balancing chemical equations Whiteboard exercise Play

Balancing chemical equations Whiteboard exercise Play

Balancing chemical equations Animation Play

Balancing chemical equations and stoichiometry Animation Play

Balancing chemical equations. Part 1 Student activity Play

Balancing chemical equations. Part 2 Student activity Play

Basic constants Chart Play

Batteries Illustration Play

Benefits and risks of nuclear energy Slideshow Play

Bernoulli's equation for constant potential energy of a fluid Slideshow Play

Bernoulli's equation for constant potential energy of a fluid Whiteboard exercise Play

Bernoulli's equation for constant potential energy of a fluid Student activity Play

Bernoulli's Principle Slideshow Play

Bernoulli's Principle Student activity Play

Bernoulli's Principle Slideshow Play

Bernoulli's Principle Whiteboard exercise Play

Binding energy Whiteboard exercise Play

Binding energy Student activity Play

Binding energy Student activity Play

Binding energy Simulation Play