UNIT 4

It took a long time to _________ up with a solution, but we did it!

• come

• bring

• go

• find

That bag is not practical because it’s too heavy to carry around.

• useful

• handy

• useless

• uncomfortable

The speaker broke the first time I used it because it was made using cheap materials.

• easy to use

• inexpensive

• low quality

• hard to use

someone who does scientific research

• developer

• inventor

• entrepreneur

• scientist

_________ a discovery

• do

• make

• create

• invent

_________ an experiment

• develop

• invent

• do

• make

_________ a solution to a problem

• invent

• create

• come up with

• discover

_________ something in detail to find new facts

• investigate

• research

• develop

• come up with

_________something to find out the facts about it

• investigate

• research

• invent

• develop

someone who studies or works in the area of physics

• psychic

• physic

• physicyst

• physicist