Activities 2.
1.
X-rays
Radioactivity
Quinine
Lsd
The microwave
Play-doh
2.
1-f
2-j
3-m
4-b
5-k
6-a
7-a
8-e
9-d
10-i
11-h
12-c
13-g
5.
Super glue first discovered by harry cover . he was actually experimenting with clear plastic gun sights for use in world war II.
Vaseline – in 1859 , 22 years-old chemist Robert Chesebrough was investigating an oil well in Pennsylvania when he caught wind of a strange rumour among the oil rig workers.
6 .
Destroyed
Deplete
Emitted
Brought
Use
Producing
Call
Consideration
Do'stlaringiz bilan baham: |