Want this question answered?
they watch clouds.
telescopes
microscopic things
You don't have to be a scientist to observe the rainbow. The rainbowwas already well known by the time of Noah and the flood.
a few hundred thousand years after the Big Bang
By using a telliscope
Robert Hooke an Englishman was the first scientist to observe cells
The scientist should use an electron microscope
They Observe, Predict and Infer
they watch clouds.
Cookie monster era
Gallo
The scientist should use an electron microscope
Public representation is something that the public can observe ( that the public can go look at) something like a museum.
It allows a scientist to measure the wavelength of light.
Galileo
A general answer to your question would be: tools. For example, a microscope is a tool that makes it easier to understand things that are too small to observe directly. An x-ray machine is a tool that allows us to see inside of things that are too hard to see inside of directly. A knife is a tool that allows us to cut up large things to see what is inside of them.