what?
the senate descends from the house of lords. it's meant to represent the interests of property, as a counterbalance to the house of commons.
this is a bunch of fucking bullshit. and, that's the exact language you should use, as you send your kids to the fucking internet to do some real research.
but, it's not just a bunch of fucking bullshit, it's a scary level of revisionism - the kind of thing we're not just going to look back and laugh at, but the kind of thing we're going to look back and laugh at very uncomfortably.
don't rot your kids' brains with lies. tell them the truth. we have a lower chamber for commoners, and an upper chamber for feudal property owners. the balance of power was initially designed to ensure that the property owners could override the commoners. over time, this fell into disuse - and for good reason, as it is undemocratic. unfortunately, the current government seems to want to return to feudalism. so, it wants to rebrand the house of lords as some kind of guardian council.
i will repeat what i've stated previously: the senate is invalid as a governing body. it can act as a kind of proof-reading institution without any real backlash. but, the day the senate overturns legislation from the house (that has not already been ruled unconstitutional), the social contract is broken and the entire state loses any claim to legitimacy it claims it has.
http://www.cbc.ca/news/politics/wise-owls-senate-childrens-book-1.4094066