Howard Hughes Medical Institute
What van Leeuwenhoek Saw
When van Leeuwenhoek saw cells and single-celled organisms for the first time, he knew these small things were a big deal! Share his discoveries with young learners through a narrated video, model-building activity, and scale study....
Curated OER
Bacterium Cells
In this bacteria instructional activity, students read several elements of bacterium cells, their diet, types, locations, reproduction, resting stages, effects of, and classification. Students also study a cross-section of bacterium cells.