A change in speed during the passage to a different medium Whiteboard exercise Play

A magnifying glass Student activity Play

A microscope Student activity Play

A microscope Animation Play

A refracting telescope Student activity Play

A refracting telescope Animation Play

A spoon in a glass of water Animation Play

Binoculars Whiteboard exercise Play

Binoculars Student activity Play

Choosing the right optical instrument Whiteboard exercise Play

Differences in size Student activity Play

Digital encoding of an image Student activity Play

Image magnification Animation Play

Images in a refracting telescope Animation Play

Lens equation and magnification Animation Play

Lens equation and magnification Whiteboard exercise Play

Lens equation and magnification Student activity Play

Light microscopy – magnifying the object Student activity Play

Limitations of the light microscope Student activity Play

Magnification in relation to the focal length and the distance from the mirror Animation Play

Microscope Student activity Play

Microscopes and the size of cells Class activity Play

Microscopes and the size of cells Whiteboard presentation Play

Morphology of prokaryotic and eukaryotic cells as seen under the light microscope Whiteboard presentation Play

Morphology of prokaryotic and eukaryotic cells as seen under the light microscope Class activity Play