8th Grade Science November 25, 2014 Learning Objective: Be able to describe how astronomers use the EM spectrum. Bell Ringer: What are the formulas for the following: speed, force, work, and density? How we use the EM spectrum

The EM Spectrum Astronomers use different parts of the EM spectrum differently.

Instructions: (no, don’t write this down, these are instructions) Use the digital lesson to fill in your tables for each type. Also, label each part. Fusion link Create your notes based on the lesson.

So What? Different parts of the universe that are hot put off different emissions. Using a prism, you can tell what elements are in each part. Nebula – high in hydrogen. Stars – if you see lots of iron – star is really old.