Ms. Pinta's Physical Science Parent Portal

This blog will serve as a way to share and communicate what my students are learning in physical science. I hope that what you find here is useful, interesting, and informative. I will post weekly updates of classroom activities, projects, and related articles. Please feel free to join in the conversation concerning weekly topics. I will share your comments and feedback with the students. I think that they will be excited to hear what their parents have to say about the topics that we will cover!

Tuesday, November 29, 2011

The Nature of the Universe

Spiral galaxy M74 holds 100 billion stars. Oddly, stars at its outer edges rotate with the same velocity as those closer in, suggesting the influence of a substantial mass of unseen dark matter.  NASA
There are many questions concerning the nature of the universe that science attempts to answer.  Some of these scientific discoveries and ideas seem to be counter-intuitive or even defy the senses.  This week's articles point out problems that physics tackles concerning the universe that have yet to be fully answered. The question to consider is: What do we know about the nature of the universe in which we live?  To what extent do you base your ideas about the universe on scientific evidence or on belief? 
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