Chemistry Timeline Exploration
Explore key milestones and influential figures in the history of chemistry with this Grade 11 worksheet, covering major discoveries and theories.
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Chemistry Timeline Exploration
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Read each question carefully and provide your best answer based on your knowledge of the history of chemistry. Some questions may require you to recall specific dates or significant contributions.
1. Which ancient civilization is credited with early practices of alchemy, laying some groundwork for chemistry?
Roman Empire
Ancient Greece
Ancient Egypt
Mayan Civilization
2. Who is often referred to as the 'Father of Modern Chemistry' for his work on combustion and conservation of mass?
John Dalton
Antoine Lavoisier
Dmitri Mendeleev
Robert Boyle
1. John Dalton proposed his atomic theory in the early century.
2. The discovery of the electron is attributed to in 1897.
3. Marie Curie was a pioneer in the field of , winning Nobel Prizes in both Physics and Chemistry.
1. Briefly explain the significance of the alchemists' contributions to the development of chemistry, despite their ultimate goals.
2. Describe how the discovery of new elements and the development of the periodic table by Mendeleev revolutionized chemistry.
1. Robert Boyle's work helped distinguish chemistry from alchemy.
True
False
2. The phlogiston theory was widely accepted as the correct explanation for combustion until Lavoisier's experiments.
True
False
Match the scientist with their major contribution.
1. Niels Bohr
a. Discovered the neutron
2. Ernest Rutherford
b. Planetary model of the atom
3. James Chadwick
c. Gold foil experiment (nuclear atom)
4. J.J. Thomson
d. Discovered the electron
A New System of Chemical Philosophy, published by John Dalton in 1808, laid the foundation for modern atomic theory.
Image: Front page of 'A New System of Chemical Philosophy' by John Dalton.
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