3 UNIT 4 VOCABULARY

badly made

biologist

charge

chemist

come up with a solution

comfortable

create an invention

design a device

develop a product

discover something

do an experiment

doctor

easy to use

engineer

entrepreneur

expensive

generate

handy

hard to use

healthcare

high quality

impractical

improve

inexpensive

innovative

invent a product

inventor

investigate something

low quality

make a discovery

physicist

practical

reliable

remote

research something

researcher

scientist

trailer

uncomfortable

unreliable

useful

useless

wearable

well-made

wireless