A ferrous metal contains iron whilst a non-ferous metal does not.  Examples of ferrous metals incude: mild steel, high speed steel, stainless steel and cast iron.  Examples of non-ferrous metals include: copper, aluminium, tin,...

Interesting - does a heavier car go faster or slower?  The answer is that - if the design is identical so you can ignore differences in air resistance and frictional resistance - the speed down the slope should be the same -

This is a broad question! An initial search on Google - using 'technology food development since 1950s' - brought up a broad range of answers, including: food science institutions, impact of microwaves and irradation on food, ...

If you met this word in a science or maths lesson, then it was describing the units of measurements we used to use before the metric units (such as metres and grams).  Imperial units include:

  - feet and inches - for length...

Electricity in the form of lightning has probably been around since the Earth was formed. Apparently there is evidence that the Greeks in about 600 BC found that when yuo rubbed a stick of amber ( fossilised resin from a tree) it ...