Period of the cosine Animation Play

Period of the sine function Animation Play

Period of the tangent function Animation Play

Periodic trends Illustration Play

Periodic trends Student activity Play

Periodic trends in the chemical properties of elements Class activity Play

Periodic trends in the chemical properties of elements Whiteboard presentation Play

Periods of species extinction Chart Play

Periods of the sine function Whiteboard exercise Play

Periods of the tangent function Whiteboard exercise Play

Physical properties of oxides of Period 3 elements Student activity Play

Physical properties of Period 2 elements from lithium to neon Chart Play

Picking a card with the number 13 Animation Play

Pink paint Whiteboard exercise Play

Planetoids Student activity Play

Planets and moons Student activity Play

Planets and moons Illustration Play

Planning Whiteboard exercise Play

Planning Student activity Play

Playing tennis Whiteboard exercise Play

Position in the periodic table Whiteboard exercise Play

Position in the periodic table Student activity Play

Position of an element in the periodic table Whiteboard exercise Play

Position of elements in the periodic table Animation Play

Power of a number Animation Play