THE PAST. Discovery and invention.pngDISCOVERIES AND INVENTIONS.

Gap-fill exercise (by Juan Luis Serrano Pedrosa).

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

USE THESE WORDS.

telephone

penicillin

paper

fire

GPS

light

America

electricity

INVENTIONS AND DISCOVERIES.

Fire.png

Prehistoric man discovers .

Columbus.png

Christopher Columbus discovers .

Electricity.png

Benjamin Franklin discovers .

Penicillin.png

Alexander Fleming discovers .

Telephone.png

Alexander G. Bell invents the .

Paper.png

The Chinese invent .

Bulb.png

Humphry Davy invents the fisrt electric .

Invention 2.png

Hedy Lamarr invents wi-fi, bluetooth an .