ClassFlow
Class Flow: Microscope
[Free Registration/Login Required] This flipchart introduces the microscope. It focuses on the parts of the microscope and their functions.
National Science Foundation
National Science Foundation: A Tour of the Cell
Imagine having a microscopic camera so small that you could travel inside a cell. This interactive site allows you to do just that. Click on any one of eight individual parts of the cell--cell membrane, nucleus, DNA, RNA, ribosome,...