Albert Einstein is the most popular _____ all around the world. Everybody knows him., doctor, scientist, technician, astronaut, My students and I do some ___ in the lab, so they can learn the subject better., experiments, microscopes, telescopes, scientist, Scientists are working on ---- the planets like Mars., trying, conducting, examining, improving, Students learn about matter and energy in ----., biology, geology, physics, astronomy, Graham Bell - - - - the telephone and people started to communicate easily., invented, discovered, operated, examined, To me, the computer is the most important scientific ---- because it changed our lives., reason, experiment, discovery, achievement, We need some test ---- to put the chemical substances in., microscopes, tubes, diseases, batteries, Scientists are trying to explain the ---- and effect of relationship during the experiments., cause, experience, devices, fossils, Stephen Hawking - - - - away in March 14, 2018., born, published, passed, examined, Marie Curie ----- radium and it was the biggest scientific development for me., designed, developed, improved, discovered.

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