Objects viewed through a microscope are usually measured in which units?

Micrometers

The term "microscope" literally means something that can see at the microscopic level. One micrometer is equivalent to 1/1000 millimeter, or 1/1000000 meters. An example of an object's dimension being measured in micrometers is the diameter of a human hair, which is about 50 micrometers on average.

To really 'see' inside the atom and detect fundamental particles we need to go beyond visible light and bounce particles off the smallest building blocks of the Universe to 'observe' them. This session introduces students to the scientific process—how scientific methods and theories are updated and develop as new evidence and information is collected.

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