Understand the electromagnetic spectrum and how it is organized. Understand what different types of electromagnetic radiation can reveal about astronomical objects. Understand and describe important properties of electromagnetic radiation. Understand how technology is used to collect electromagnetic radiation and turn it into images. Understand what can be learned from analyzing the light from astronomical objects. Understand how different types of lenses and telescopes work Understand and describe the quantization of energy at the atomic level Understand that all objects emit and absorb electromagnetic radiation and distinguish between objects that are blackbody radiators and those that are Qualitatively describe the shift in frequency in sound or electromagnetic waves due to the relative motion of a source or a receiver

Learning Goals: What is electromagnetic radiation? What can different types of electromagnetic radiation reveal about astronomical objects? What are the important properties of electromagnetic radiation and how are they typically organized? What can be learned from analyzing the light from astronomic objects? How is technology used to collect electromagnetic radiation and turn it into images?

Finally Spectrum Analysis Light Analysis

Lab/Observation Day Follow these directions Cut the sheets out and glue in your journal Throw away your scraps Make sure that everybody has a chance to look at each station It will be easier the closer you get to the light source Please don’t go ahead until we rotate (it’s going to be dark When you rotate, please please be careful! These are hundreds of dollars each!

Your Science Journal Should Look Like This at the end

Keep track of the numbers at the bottom (wavelength in angstroms) Refer to the screen at the front to figure out which element you are looking at

Ar H He Hg I Kr Ne

Keep track of the numbers at the bottom (wavelength in angstroms) Refer to the screen at the front to figure out which element you are looking at Please be careful with the expensive equipment DO NOT TOUCH THE BULBS!! Please leave your spectroscopes, and your markers pencils at the lab station! We wont finish them all today We will do half today and half tomorrow

At the end of each rotation, your table should look like this!

Emission Spectrum of Each Element

Ar H He Hg I Kr Ne

Sometimes it is very hard to see https://www.youtube.com/watch?v=3eJU1NQJLEY

There is a station at my desk with a candle There is also a station by the snake where you must go outside and look at the spectrum of sunlight Don’t stare at the sun! DO NOT TOUCH THE BULBS!! At Each Station: Look at the element Draw the spectrum Identify - Try to figure out which bulb corresponds to each element

Ar H He Hg I Kr Ne