Valence-shell electron-pair repulsion theory (VSEPR theory) Student activity Play

Valence-shell electron-pair repulsion theory (VSEPR theory) Whiteboard exercise Play

Variable types Animation Play

Variation of electronegativity within a group Whiteboard exercise Play

Variation of electronegativity within a group Student activity Play

What are the possibilities of transfusion? Student activity Play

What can be observed during an eclipse of the Sun? Student activity Play

What can be read from H-R diagram? Student activity Play

Where stars are born? Whiteboard exercise Play

Where stars are born? Student activity Play

White dwarves Whiteboard exercise Play

White dwarves Student activity Play

Why are compounds containing the –COOH group called acids? Student activity Play

Why are compounds containing the –COOH group called acids? Whiteboard exercise Play

Xenon fluoride molecule Animation Play