What do you think is ___ most important scientific discovery in ___ history? Why?, Do you think ___ discovery of electricity changed ___ world more than ___ invention of ___ internet?, Do you know ___ discovery that happened by accident?, Do you think scientists today can still make ___ big discoveries?, In your opinion, is ___ discovery of ___ new medicine more important than ___ development of new technology?, Would you like to be ___ scientist who makes ___ famous discovery?, What discovery has had ___ biggest impact on ___ human life?, Do you think space exploration will lead to ___ important discoveries in ___ future?, Is there ___ discovery from ___ past that you think changed people’s lives the most?.

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