March 11-12 We've got Stars on Ours

Today we did a little bit of reading (pages 98-100), spoke a bit about the Hubble Deep Field image and then split into three groups.

Our groups went through three activities:

1. We did the Hot or Not lab on page 118--using battery eliminators instead of D cells. This lab was turned in at the end of the period.
2. We viewed the emission spectra of several gases (hydrogen, iodine, Carbon DiOxide) and noted the different lines emitted by these gases.
3. We read pages 102-103 and did the quicklab on 103--it discussed how the concept of Parallax was used to measure the distance to the stars. We also looked at a website that demonstrated this idea. The website can be found at http://instruct1.cit.cornell.edu/courses/astro101/java/parallax/parallax.html

Today was a busy day--be sure to read pages 98-104 if you missed today's class