Week of December 5, 2016

There are only 2.6 weeks until winter break. After winter break there are just five days before exams. Time is flying, so be sure to check PowerSchool and keep on top of your work so that you can finish the semester like a champion!

This Week in Physics
On Monday we will continue to debrief PODCAST 5: Newton’s Laws of Motion – Second Law and will then complete an activity and assignment 5 together followed by a quiz as announced. (Note: 8th period, this podcast is due on Monday.) When announced please take notes on  PODCAST 6: Newton’s Laws of Motion – Third Law and will then complete an activity and assignment 6 together followed by the unit 3 test.
Friction lab report: Your lab report for the friction lab will be due on Friday, December 9. A hard copy is due at the start of class, and an upload to TurnItIn.com is due by 3:00 on that day. Use our writing guides to organize and create your reports properly: Lab Report Writing Guide and Lab Report Rubric. As always, you must write while logged onto you Google account on a shared Google Drive document. You must share your document with me as an editor. Use this email address: burgessm@alstudent.org. Note: Here are instructions for inserting the screenshot of the graph properly. 🙂 

Hot Science of the Week
There is much debate right now as our government shifts to a new administration about whether climate change is real or a hoax. The graph below from NASA shows greenhouse gas levels over the last 400,000 years. Rising ocean levels, acidification of our water supply, and extreme weather are among the consequences scientists say we’ll face due to climate change. In the Midwest, NASA predicts “Extreme heat, heavy downpours and flooding will affect infrastructure, health, agriculture, forestry, transportation, air and water quality, and more. Climate change will also exacerbate a range of risks to the Great Lakes [water supply.]” Geologists and environmental experts are considering renaming our current epoch the “antrhopocene” (anthro meaning human), calling this an era during which humans are the main cause of changes to Earth and its species. Are we? There’s buzz that in the coming administration NASA will lose much of its funding for climate change research, eliminating or seriously reducing funding for the satellites scientists use to monitor Earth’s climate. Politicians who believe that climate change is a hoax criticize it as “politicized science” and want to reduce environmental regulations in order to promote business growth. It’s a complex issue. What do you think?
This graph, based on the comparison of atmospheric samples contained in ice cores and more recent direct measurements, provides evidence that atmospheric CO2 has increased since the Industrial Revolution. (Source: [[LINK||http://www.ncdc.noaa.gov/paleo/icecore/||NOAA]])