Tuesday, December 6, 2011

How come people from different parts of the world look different?

Thursday, December 1, 2011

Friday, November 25, 2011

Sunday, November 13, 2011

Sunday, November 6, 2011

What is gentrification and how come it's a bad thing for communities

What is the difference between volts, amps and watts?


Tuesday, November 1, 2011