Vocabulary # 5

Vocabulary # 5

The tool of Astronomers



Universe : Everything that exists.



I will like  to know more about the universe .

Telescope : A device that collects ligth and makes distant objects appear closer and larger .



My uncle Ivan explain me  how to use a telescope .

Refraction : The bending of waves as they go from one substance to other .



 Teacher Rodolfo tell us what is an reflection .

Wavelength : The distance from one peak to the next on a wave .



Last week i make an specch about wavelength .

Frequency : The number of Wave that pass through a point in a second .

  

 

Frequency is the number of wave that pass through a point  in a second .

Electromagnetic spectrum : Wave of ligth in order of by wave length .



Tomorrow i have a test about electromagnetic waves .