Antoine Lavoisier (1743-1794)
John Dalton (1766-1844)
Amedeo Avogadro (1776-1856)
Robert Bunsen (1811-1899)
Dmitri Mendeleev (1834-1907)
Marie Curie (1867-1934)
Rosalind Franklin (1920-1958)
100

Based on the video's explanation of gases, which of the following pairs is correct?
A. "Inflammable air" is Hydrogen; "Dephlogisticated air" is Oxygen.
B. "Inflammable air" is Nitrogen; "Dephlogisticated air" is Carbon Dioxide.
C. "Inflammable air" is Oxygen; "Dephlogisticated air" is Hydrogen.
D. "Inflammable air" is Helium; "Dephlogisticated air" is Nitrogen.

A. "Inflammable air" is Hydrogen; "Dephlogisticated air" is Oxygen.

100

According to Dalton, matter is made up of ______.

 A. atoms
 B. molecules only
 C. energy waves
 D. cells

A. atoms

100

What was Amedeo Avogadro’s nationality?

 A. French
 B. Italian
 C. German
 D. British

 B. Italian

100

Bunsen and Kirchhoff used their spectroscope to discover two new elements. What were they?
 A. Helium and Neon
 B. Gold and Silver
 C. Cesium and Rubidium
 D. Radium and Polonium

 C. Cesium and Rubidium

100

The idea that elements should be arranged based on __________ was central to his table.
A. color
B. atomic mass (weight)
C. magnetism
D. melting point

B. atomic mass (weight)

100

In 1898, the Curies discovered two new elements. What were they?
A. Uranium and Thorium
B. Radium and Polonium
C. Helium and Neon
D. Carbon and Nitrogen

B. Radium and Polonium

100

Before her work on DNA, Franklin conducted important research in France regarding the physical structure of:
 A. Gold and Silver
 B. Coal
 C. Liquid Nitrogen
 D. Plant cells

 B. Coal

100

Lavoisier is famous for debunking which widely accepted theory of his time?
A. The Theory of Relativity
B. The Big Bang Theory
C. The Phlogiston Theory
D. The Germ Theory of Disease

C. The Phlogiston Theory

100

Where was John Dalton born in 1766?
A. London, England
B. Eaglesfield, England
C. Edinburgh, Scotland
D. Manchester, England

B. Eaglesfield, England

100

What is Avogadro’s number?

 A. 6.02×1012

 B. 6.02×1020

C. 6.02×1023

 D. 6.02×1030

C. 6.02×1023

100

What was Robert Bunsen’s nationality?

 A. British

 B. French

 C. German

 D. American

C. German

100

What unusual method did Mendeleev use while working on the periodic table?

 A. He memorized all elements daily
 B. He used microscopes to observe atoms
 C. He built physical metal models
 D. He used playing cards to arrange elements

D. He used playing cards to arrange elements

100

Marie Curie was the first woman to win a Nobel Prize. In what year did she share her first Nobel Prize in Physics?
A. 1911
B. 1905
C. 1903
D. 1898

C. 1903

100

Besides DNA, Rosalind Franklin did groundbreaking work on which of the following?

A. Viruses structure

B. Bacteria structure

C. Proteins structure

D. Fungi structure

A. Viruses structure

100

What is the core principle of the "Law of Conservation of Mass" established by Lavoisier?
A. Matter is only created when heated intensely.
B. Matter is easily destroyed during chemical reactions.
C. Matter can neither be created nor destroyed; it only changes form.
D. Matter increases in mass when it is burned.

C. Matter can neither be created nor destroyed; it only changes form.

100

Before his work on atoms, Dalton gained recognition for his daily records and research in which field?
A. Marine Biology (Ocean)
B. Astronomy (Stars)
C. Botany (Plant)
D. Meteorology (Weather)

D. Meteorology (Weather)

100

What does Avogadro’s Law state?

 A. Gas pressure depends only on temperature
 B. Energy cannot be created or destroyed
 C. Mass is conserved in chemical reactions
 D. Equal volumes of gases contain equal numbers of particles at the same temperature and pressure

D. Equal volumes of gases contain equal numbers of particles at the same temperature and pressure

100

Which of the following was NOT one of Bunsen’s scientific achievements?

 A. Improving laboratory burners
 B. Developing spectroscopy methods
 C. Discovering new chemical elements
 D. Inventing the periodic table

D. Inventing the periodic table

100

What was Dmitri Mendeleev’s nationality?

A. German

B. Russian

C. French

D. British

B. Russian

100

Marie Curie became the first person in history to win two Nobel Prizes. In which field was her second prize (1911) awarded?
A. Chemistry
B. Physics
C. Medicine
D. Literature

A. Chemistry

100

Which important DNA image is Franklin best known for?

A. Photo 51

 B. Photo 15

 C. Image A

 D. Figure 12

A. Photo 51

100

What was Antoine Lavoisier’s nationality?
A. British
B. German
C. American
D. French

D. French

100

John Dalton was one of the first scientists to provide a scientific description of which condition (which he also had)?
A. Asthma
B. Color Blindness
C. Dyslexia
D. Arthritis

B. Color Blindness

100

What was Amedeo Avogadro’s original profession before becoming a scientist?

 A. Lawyer
 B. Medical doctor
 C. Engineer
 D. Pharmacist

A. Lawyer

100

Who actually built the first practical Bunsen burner?

 A. Robert Bunsen alone
 B. Michael Faraday
 C. Peter Desaga
 D. Dmitri Mendeleev

 C. Peter Desaga

100

Before Mendeleev proposed the periodic table, about how many elements had been discovered?

A. About 30 elements
B. About 45 elements
C. About 63 elements
D. About 100 elements

C. About 63 elements

100

Where was Marie Skłodowska Curie born?
A. Paris, France
B. Warsaw, Poland
C. London, England
D. Berlin, Germany

B. Warsaw, Poland

100

Franklin worked at which research institution when she made her key DNA discoveries?

 A. Cambridge University

 B. Harvard University

 C. University of Oxford

 D. King’s College London

D. King’s College London

100

Lavoisier observed that the mass increased after he burned which of the following substances?
A. Wood and paper
B. Phosphorus
C. Pure water
D. Dried leaves

B. Phosphorus

100

According to Dalton's theory, how do atoms of the same element compare to each other?
A. They have different sizes but the same mass.
B. They can change into atoms of other elements.
C. They are identical in mass and properties.
D. They vary depending on the temperature.

C. They are identical in mass and properties.

100

11. Which element on the periodic table was later named after Mendeleev?

A. Element 101
B. Element 107
C. Element 118
D. Element 58

A. Element 101

100

Which scientist's discovery of uranium rays initially sparked Marie Curie's interest in radiation research?
A. Albert Einstein
B. Isaac Newton
C. Ernest Rutherford
D. Henri Becquerel

D. Henri Becquerel

100

Rosalind Franklin’s research mainly focused on which type of scientific technique?

 A. Genetic engineering

 B. X‑ray crystallography

 C. Electron microscopy

 D. PCR amplification

B. X‑ray crystallography

M
e
n
u