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