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Maria Skłodowska Curie is known as pioneer in the field of radioactivity. She was born in 1867. Her father was a teacher. Unfortunately, her mother and sister died when she was a child.
She was very interested in chemistry and physics. She spent all her life on hard work. Sometimes she forgot to eat or sleep.
In 1891, when Maria was 24, she decidet to leave Poland and go to France to study. There she met Pierre, the instructor in the School of Physics and Chemistry, who got married with her in 1894.
In 1898 she discovered the chemical elements polonium (Po) and radium (Ra). She won lots of international prizes. In 1903 Maria, Pierre and Henri Becquerel got a Nobel Prize in Physics. Eight years later, the Royal Academy of Sciences awarded Maria the Nobel Prize in Chemistry.

>Maria Skłodowska Curie is known as pioneer in the field of
>radioactivity.
zapomnialas o jednym slowie, ktore jest w tym zdaniu w Wikipedii
Poza tym trzeba raczej powiedziec "in radioactivity research", po 'pionierka radioaktywności' znaczy, że jako pierwsza zaczęła świecić w nocy :-)

She spent all her
>life WORKING HARD. Sometimes she forgot to eat or sleep.
>In 1891, when Maria was 24, she decidet France to study. There she met Pierre, AN instructor in the School of
>Physics and Chemistry, who married her (ALBO: whom she married) in 1894.
>In 1898 she discovered the chemical elements polonium (Po) and radium
>(Ra). She won MANY (lots jest potoczne, nie do takiego tekstu) international prizes. In 1903 Maria, Pierre and
>Henri Becquerel RECEIVED (znowu got potoczne) a Nobel Prize in Physics. Eight years later, the
>Royal Academy of Sciences awarded Maria the Nobel Prize in Chemistry.