3.  1. Which of the discoveries has been the most important so far? Why ?  2. Which discovery will have the most important consequences in the future? Why ?  3. Which of the scientists do you admire most? Why?  4. Which of the discoveries is the most difficult to understand?

4.  1.the discoverers of radium  2. the inventor of wireless  3. the discoverer of the structure of the atom  4. the evolver of the theory of relativity  5. the inventor of dynamite  6. the discoverer of penicillin  7. the discoverer that energy only exists in particular amounts, called quanta  8. the discoverer of an exact method for measuring electric resistance  9. the discoverer of laws of electrolysis  10. the inventor of incandescent bulb  A. Albert Einstein  B. Alfred Nobel  C. Max Planck  D. Nails Bohr  E. Klaus von Kitzing  F. Pierre and Marie Curie  G. Michael Faraday  H. Thomas Alva Edison  I. Sir Alexander Fleming  J. Guglielmo Marconi

5.  A. Alexander Graham Bell  B. Maria Mitchell  C. Jan Szczepanik  1.Who came from a big family?_______________________  2. Who received a medal from a king? ____________________  3. Whose scientific interests were not grounded in family traditions? __________________  4. Whose achievements were appreciated outside his/her country? ___________________  5. Whose research was concentrated on one field of science? __________________________  6. Who had planned a different career? _______________________________  7. Who worked as a teacher? __________________________________  8. Whose birthplace is open to the public? ________________________

6.  Choose the correct answer:  1. Who discovered the three laws of motion in the 17 th century?  a) Copernicus b) Newton c) Galileo  2.Who developed the periodic table of elements in chemistry?  a) Mendel b) Mendeleyev c) Mendelssohn  3.Who discovered the practical uses of radio waves?  a) Sony b)Marconi c) Hertz  4. Who discovered that electricity existed as a current?  a) Ampere b) Volta c) Faraday  5.Who proposed the existence of the atom?  a) Rutherford b) Einstein c) Democritus  6.Who discovered the fundamental principles of genetics?  a) Darwin b)Lamark c) Mendel  7. Who discovered that light is made up of a mixture of coloured light?  a) Maxwell b) Einstein c) Newton  8.Who discovered the existence of radioactivity?  a) Bequerel b) Pierre Curie c) Marie Curie  9. Who established the principles for naming and classifying plants?  a) Lamarck b) Darwin c) Linnaeus  10. Who discovered that the Earth orbits the Sun?  a) Copernicus b) Newton c) Galileo