Science Trivia Questions & Answers

Sample science trivia questions with answers, taken straight from the most-played quizzes in our Science category — 3.5K questions in total. Read through the Q&As below, then play the full quizzes to get scored. Free, no sign-up.

Dr. Does Chemistry Quiz

10 questions · ~2 min · Medium · played 1.6K times

What is the chemical symbol for gold?

Answer: Au

How many protons does a carbon atom have?

Answer: 6

What is the pH of pure water?

Answer: 7

Which element has atomic number 1?

Answer: Hydrogen

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Planet Quiz

10 questions · ~2 min · Medium · played 147 times

What is the largest planet in the solar system?

Answer: Jupiter

Which planet is known as the Red Planet?

Answer: Mars

How many planets are in our solar system?

Answer: 8

Which planet has the most confirmed moons?

Answer: Saturn

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Hacker Quiz

10 questions · ~2 min · Medium · played 73 times

What was the primary focus of early hackers in the 1960s?

Answer: Exploring and manipulating computer systems

Which hacker is known for hacking into the systems of IBM and Nokia in the 1980s?

Answer: Kevin Mitnick

In what year did the term 'hacker' begin to attract negative connotations?

Answer: 1999

Who is known as the 'homeless hacker' for breaching high-profile networks?

Answer: Adrian Lamo

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Eye Anatomy Quiz

10 questions · ~2 min · Medium · played 65 times

What is the clear front layer of the eye called?

Answer: Cornea

Which part of the eye controls the size of the pupil?

Answer: Iris

In what year did Ibn al-Haytham write the 'Book of Optics'?

Answer: 1021

What is the primary function of the retina?

Answer: Transform light into neural signals

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Skull Foramen Quiz

9 questions · ~2 min · Medium · played 62 times

What is the primary function of the optic foramen?

Answer: Transmits the optic nerve

Which of the following foramina allows the passage of the internal jugular vein?

Answer: Jugular foramen

Who was the first anatomist to publish a comprehensive study of the human skull?

Answer: Andreas Vesalius

In what year was 'De humani corporis fabrica' published?

Answer: 1543

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Glycolysis Quiz

10 questions · ~2 min · Medium · played 55 times

What is the end product of glycolysis?

Answer: Pyruvate

Which of the following enzymes is a key regulatory step in glycolysis?

Answer: Phosphofructokinase

In what year did the Embden-Meyerhof pathway get characterized?

Answer: 1940

Who was one of the main contributors to the understanding of glycolysis?

Answer: Gustav Embden

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Medical Terminology Quiz

10 questions · ~2 min · Medium · played 47 times

What does the term 'hypertension' refer to?

Answer: High blood pressure

Which of the following terms refers to inflammation of the liver?

Answer: Hepatitis

Who is known as the 'Father of Medicine'?

Answer: Hippocrates

In what year was the World Health Organization (WHO) established?

Answer: 1948

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Military Time Quiz

10 questions · ~2 min · Easy · played 44 times

What is the military time for 3:00 PM?

Answer: 15:00

Which of the following times represents 6:45 AM in military time?

Answer: 06:45

In what year did the U.S. military adopt military time for standard use?

Answer: 1918

What is the military time for 12:30 AM?

Answer: 00:30

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Epithelial Tissue Quiz

10 questions · ~2 min · Easy · played 40 times

Which characteristic distinguishes epithelial tissue from other tissue types?

Answer: Its cells are closely packed with little extracellular matrix

Simple squamous epithelium is found in which location?

Answer: The lining of blood vessels (endothelium)

What does 'stratified' mean when describing epithelial tissue?

Answer: Multiple layers of cells

Which type of epithelium lines the urinary bladder and can change shape when stretched?

Answer: Transitional (urothelium)

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Analog Clock Quiz

10 questions · ~2 min · Easy · played 38 times

What is the primary function of an analog clock?

Answer: To display time

Which component of an analog clock regulates the release of energy?

Answer: Escapement

In what year was the first known mechanical clock created?

Answer: 1283

Who improved the pendulum clock in the 17th century?

Answer: Christiaan Huygens

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Vitamins Quiz

10 questions · ~2 min · Medium · played 36 times

What vitamin is known for preventing scurvy?

Answer: Vitamin C

Which vitamin is primarily associated with vision?

Answer: Vitamin A

In what year was Vitamin C discovered?

Answer: 1932

Which of the following vitamins is water-soluble?

Answer: Vitamin B12

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Shoulder Anatomy Quiz

10 questions · ~2 min · Medium · played 36 times

What is the primary bone that makes up the upper arm?

Answer: Humerus

Which of the following muscles is NOT part of the rotator cuff?

Answer: Deltoid

In what year was 'Gray's Anatomy' first published?

Answer: 1858

Who was the anatomist known for challenging the medical dogmas of his time during the Renaissance?

Answer: Andreas Vesalius

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