Imagine your life without ______________. Before ______________, we didn't have useful things such as batteries, computers and mobile phones.
electricity
Now that we have _____________ our world is a very different place.
aeroplanes
The Wright brothers tried to fly many times, but they ___________-
failed
Five thousand years ago, people had a _____________. They couldn't move things.
problem
What is this?
A rocket
What is this?
a rubber
What is this?
An aeroplane.
What is this?
A wheel
What is this?
A mobile phone
Inventors need ___________________ and ____________________.
imagination and creativity
What is this?
a train
In 1839 Charles Goodyear had an _________. He invented the modern rubber.
idea
What is this?
A battery
______________ are everywhere. Look around you, what ______________ can you see?
Inventions
Finally, they __________ in 1903.
succeeded
Five thousand years ago people had a problem. They couldn't move things! Then someone found the solution - the ___________.
wheel