Oxygen and its Discovery

Which of these scientists showed that oxygen was important to burning?

• Marie Curie

• Francis Crick

• Antoine Lavoisier

• Gregor Mendel

What percentage of the air does oxygen make up around us?

• 16%

• 30%

• 50%

• 21%

Joseph Priestley discovered that there are more than one gases which he called what?

• Multiple airs

• Different airs

• Oxygen

• Hydrogen

Who discovered oxygen?

• Joseph Priestley

• Antoine lavoisier

• Aristotle

• Erastosthenes

What year was oxygen discovered?

• 1972

• 1872

• 1774

• 2009

What was oxygen first called by its discoverer?

• Phlogiston

• Combustion gas

• Dephlogisticated air

• Acid former

Which of these scientists was as well a lawyer?

• Joseph Priestley

• Antoine Lavoisier

• Charles Dalton

• Mendeleev

Pick out the scientists that contributed to the discovery of oxygen.

• Joseph Priestley

• Aristotle

• Blaise Pascal

• Charles Dalton

• Antoine Lavoisier

Joseph Priestley was a religious minister.

• True

• False

Phlogiston Theory stated that when objects burned, the phlogiston inside them left which made the objects __________

• Lighter

• Heavier