12 A kg is a kg is a kg, or is it?

1)  Write down and answer this question:  What is a kilogram?

Now read this:
http://gizmodo.com/5973808/the-kilogram-is-putting-on-weight

Oh no, the metric system isn't stable?

2)  What are the 7 basic metric standard units?  (Write the Symbol, Term, and what it measures) 

3)  Pick any two, and explain how they are standardized internationally.