The inventors

Mr FAHRENHEIT invented the ____ in 1724.

• mercury

• mercury-in-glass-thermometer

• Planets

Mr FAHRENHEIT invented the mercury-in-glass thermometer in...

• 1724

• 1734

• 1824

• 1924

Mr FERRERO invented the cocoa _____ in 1963.

• Spread

• nuts

• butternut

Mr FERRERO invented the cocoa spread in 1963. What is the right question?

• When he invented it?

• Where did he invent it?

• When did he invented it?

• When did he invent it?

What did Mr RICHTER invent?

• the Richter magnitude scale

• the stairs

• the Vulcanoes

Who invented the cornflakes?

• Mr Chocapic

• Mr Kellogs

• Mr Frosties

The (a)   were invented by Mr Kellogs in 1894.

Which is the oldest invention among those?

• cocoa spread?

• Mercury-in-glass thermoter

• Cornflakes

• Richter magnitude scale?

Give the synonym of major invention

• Breakthrou

• Brakethrough

• break-through

• Breakthrough

Who was Hedy Lamarr?

• an actress and inventor

• a actress and a inventor

• an inventor and an actor