presentation

1. INVENTIONS
AND
DISCOVERIES
THAT CHANGED THE
WORLD

2. What is an invention?
-Creation of a new material, a new process,a new use for an
existing material or any improvements of any of these.
Wheel
Telephone

3. Printing
Internet

4. What is a discovery?
-Finding, meeting, demonstration of
what was hidden or secret or was
unknown.
Fire Penicillin

5. X- Rays Electricity
ADN

6. What is the difference between an
invention and discovery?
An invention is an artificial creation, by
humans,that didn't exist in the past.
And a descovery is something that humans
find in the nature , and they use it.

7. Yanna Robles Troyano
Tania Sánchez Jiménez