First, I should mention bad methods. Looking at the Sun directly can harm your eyes. Watching it through a telescope or binoculars is even worse, since the concentrated light and heat will damage your eyes faster than you can shut them. (With a telescope, or even with a simple magnifying glass, you can easily start a fire if you use it to concentrate sunlight.) Dark filters in front of a telescope may not offer sufficient protection. So, you basically have two methods:
1. Look at the Sun without a telescope, through a dark filter, such as dark glasses specifically sold as Sun-watching glasses. I am not quite sure whether welding glasses offer sufficient protection in this case.
2. With a telescope, project the Sun's image onto a sheet of white paper, or a similar white surface. Watch this projected image.
You Can Learn About The Stars
Hydrogen.
The best observation of refraction of light is by observing objects that are in water. By observing objects that are in water, the objects usually appear as if they are not straight.
Observing the Sun can be dangerous if you do not take the proper precautions. An improper viewing of the Sun during an eclipse can lead to the development of blindness or may cause retinal burns.
White reflects the heat and light off the sun using a method known as radiation. Black absorbs the heat from the sun using the same method.
The best method of skin protection for olive skin would be to use sun block. One could also avoid the sun or sit under a tree or parasol in order to hide from the sun.
Observation is the first step of the scientific method.
If you are an astronomer and your subject of observation is not Earth's sun, then yes observing at night is better.
You Can Learn About The Stars
A direct method of course would be by analysing Rock samples
the disappearing cross method is a method used when observing how the concentration of a chemical affects the rate of reaction.
is not suitable for obtaining primary data
Observing an experiment
Hydrogen.
was rotating on the circumfrence on deznuts
The best practice is to set our watch to sun time and use the sun for navigation.
In the observation method, the primary data result from observing the respondents doing something