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Fact or Fiction
Your finger nails keep growing when you die
It's False
This is a myth- the skin recedes from around them, making them appear
to have grown
Gold is a magnetic material
It's False – gold
is not “ferromagnetic”, in other words it cannot be magnetised
like other metals such as iron.
Cirrus is the name given to very big bulky clouds that usually
mean rain
It's False – cirrus means “wispy hair”
and is the name given to very high thin wispy clouds that you often see
on a cold day. Big black bulky rainclouds are called cumulonimbus.
Pencil lead contains real lead
It's False Pencil lead
is actually graphite, a form of carbon.
The cancer-causing effect of cigarettes is down to the nicotine
It's False – nicotine is what makes cigarettes addictive.
The cancer-causing effect of cigarettes is down to the tars they contain
which are produced by burning the tobacco.
Neon is a kind of gas
It's True – Neon is
a noble gas which is used in electric lights and signs because when it
is excited by electricity it can produce a pretty coloured glow !
A healthy human breathes about 6 litres of air a minute
It's True – The average person takes 12 breaths, each containing
about half a litre of air, every minute.
The first commercial fertilisers were made from bones
It's True
Superphosphate was patented in 1842 and made by treating bones with sulphuric
acid.
Car batteries contain hydrochloric acid
It's False
– they contain sulphuric acid.
Diesel engines contain spark plugs to ignite the fuel
It's False – petrol engines use spark plugs but diesel engines
rely on compressing air in the cylinder to make it hot enough to ignite
the fuel.