A human as the intermediate host Slideshow Play

A jump to the water Animation Play

A kangaroo and opossum Illustration Play

A kick of ball Animation Play

A lamp Student activity Play

A lamp Animation Play

A lamp Whiteboard exercise Play

A large amount of water in the organism Animation Play

A laser Student activity Play

A laser Whiteboard exercise Play

A lead cube Animation Play

A Lens Class activity Play

A Lens Whiteboard presentation Play

A Lewis dot-and-cross diagram of a fluorine molecule Animation Play

A Lewis dot-and-cross diagram of a hydrogen chloride molecule Animation Play

A light nanosecond Animation Play

A lighthouse Student activity Play

A lighthouse Whiteboard exercise Play

A line parallel to a given line Whiteboard exercise Play

A line parallel to a given line Student activity Play

A linear function in the argument Whiteboard exercise Play

A linear function in the argument Student activity Play

A liquid exerts pressure in a different way from a solid Student activity Play

A liquid exerts pressure in a different way from a solid Whiteboard exercise Play

A magnetic needle in the vicinity of a conductor Student activity Play