Scientific Discoveries of the 20th Century

The video explores ten major scientific discoveries made in the last century, including the identification of neutrons, the structure of DNA, the role of vitamins, the development of antibiotics, the vastness of the universe, the abundance of hydrogen, tectonic plate theory, human ancestry, the impact of CFCs on the ozone layer, and Einstein's theory of relativity. These discoveries have significantly advanced our understanding of the world and the universe.

What was the mystery particle discovered in the 1930s that added mass but not charge to atoms?

• Proton

• Electron

• Neutron

• Photon

Which scientists were instrumental in discovering the double helix structure of DNA?

• Albert Einstein and Niels Bohr

• Rosalind Franklin and Maurice Wilkins

• Marie Curie and Louis Pasteur

• Isaac Newton and Galileo Galilei

What vitamin was identified as preventing scurvy?

• Vitamin D

• Vitamin B

• Vitamin A

• Vitamin C

Who discovered the first antibiotic, penicillin?

• Joseph Lister

• Robert Koch

• Alexander Fleming

• Louis Pasteur

What did Edwin Hubble discover about the universe in the 1920s?

• It is shrinking

• It is larger than the Milky Way

• It is made of dark matter

• It is expanding

Which element is the most abundant in the universe?

• Carbon

• Oxygen

• Hydrogen

• Helium

What theory explains the movement of Earth's continents?

• Plate Tectonics

• Seafloor Spreading

• Continental Drift

• Volcanic Activity

Where do scientists believe modern humans originated?

• Europe

• Asia

• Africa

• Australia

What harmful effect do CFCs have on the environment?

• They deplete the ozone layer

• They cause acid rain

• They increase greenhouse gases

• They cause deforestation

What phenomenon did Einstein predict that was later confirmed by the LIGO Scientific Collaboration?

• Gravitational waves

• Dark energy

• Quantum entanglement

• Black holes