natural sciences 6

Inventions in our daily life

Food production Healthcare

Clothing

Foods stay fresh longer periods.

Syntetic fabrics are more resistant and cheaper.

Diagnose is easier and patients are trated quickly and more efficiently.

Can you think of benefits of each application?

TransportBicycles. At first, they were made of wood and had no pedals or brakes!

Before cars, people travelled by horse and carriage. Now most families have a car.

The steam engine gave us a way to power machines. Nowadays, trains are electric or diesel.

The hovercraft produces a cushion of air below it. It can easily move over land and water.

The first aeroplanes were powered by propellers. Now they have jet engines, and they are faster and safer.

Inventions in art and music

Music Art

New versions of a song can be made. Instruments can also be added or removed. Often the musicians don’t need to be in the same place.

Artists use modern software and technology to produce digital image.E.g.: stylus and touch-pad to draw.

ComputersINPUT: The computer receives information

PROCESS: The computer processes the information

OUTPUT: The computer sends information

1943: First computer. To break codes in messages during World War II.- It was very big.

1971: First microprocessor.- Computers were smaller and cheaper!

1980s: Personal computers.

The Internet

It’s used for…

communication sharing information

playing games

banking shopping

What do you use Internet for?Which are your favourite websites?

Word processing

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