what's the subject?
geology
what's this? all the people on earth us this system to communicate with each other.
communication satellite
the scientist is doing some ________ in the lab.
experiments
what's this?
television
what's this?
antibiotics
what's this?
refrigerator
antibiotics and electricity where some of the most important ________ of all time.
discoveries
what's the subject?
ecology
what's the subject?
physics
what's the subject?
chemistry
what's this?
jet engine
what's this?
washing machine
what's the subject?
archeology
what's this?
nuclear power
if you study science subjects, you can become a teacher or a scientist and do some _______
research
what's this?
mobile phone
what's this?
radar
Scientists have been working on finding a _____ for cancer.
cure
what can you study if you are passionate about fish?
marine biology
what's this?
credit card