Large bacterial population colonized land 2.75 billion years ago

http://phys.org/news/2012-09-large-bacterial-population-colonized-billion.html

New Material Will Finally Let Us Convert Waste Heat to Electricity

New Material Will Finally Let Us Convert Waste Heat to Electricity

Big bangs theory: Unlocking the secrets of great hair - physics-math - 21 September 2012 - New Scientist

Big bangs theory: Unlocking the secrets of great hair - physics-math - 21 September 2012 - New Scientist

Evolution is as complicated as 1-2-3

Evolution is as complicated as 1-2-3

Genetic mutation may have allowed early humans to migrate throughout Africa

Genetic mutation may have allowed early humans to migrate throughout Africa

How in the world.....

...do female snakes give birth to males without an input of male DNA. Crazy!

9th and 10th grade

Write a short summary of this article. In a separate paragraph, evaluate the validity of this experiment. Make sure that you identify dependent, independent and controlled variables.

Due by Monday, 9/24 for 10 points extra lab credit.

7th grade extra credit...

Write a short paragraph describing this article on Friday's exam for 5 extra credit points.

Israeli inventor makes $9 cardboard bicycle...

This is amazing! Can you think of other everyday items you could make using recycled cardboard?

Politics

If you follow politics, you may be interested in these responses by Mitt Romney and Barack Obama to questions regarding issues in science.

What is a fractal?

For 5 pts extra homework credit: visit this site, print out a color print of the fractal that you like most. On the back of the print, write your name and a short definition of fractal in your own words.  Open to all classes. Due by 4:00pm on Monday, Sept 10.