Science Trivia Questions With Answers

Sample science trivia questions with answers, taken straight from the most-played quizzes in our Science category — 3.9K 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 2.7K 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

Play the full Dr. Does Chemistry Quiz →

Planet Quiz

10 questions · ~2 min · Medium · played 353 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

Play the full Planet Quiz →

Epithelial Tissue Quiz

10 questions · ~2 min · Easy · played 257 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)

Play the full Epithelial Tissue Quiz →

Hacker Quiz

10 questions · ~2 min · Medium · played 146 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

Play the full Hacker Quiz →

Sepsis Quiz

9 questions · ~2 min · Medium · played 130 times

What is sepsis?

Answer: A life-threatening organ dysfunction due to infection

In what year was the Surviving Sepsis Campaign launched?

Answer: 2004

Which of the following is a common symptom of sepsis?

Answer: Rapid heartbeat

Who introduced antiseptic techniques to reduce infections?

Answer: Joseph Lister

Play the full Sepsis Quiz →

Medical Terminology Quiz

10 questions · ~2 min · Medium · played 123 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

Play the full Medical Terminology Quiz →

Trigonometry Quiz

10 questions · ~2 min · Medium · played 118 times

What is sin(90°)?

Answer: 1

What is cos(0°)?

Answer: 1

What does SOH stand for in SOHCAHTOA?

Answer: Sine = Opposite / Hypotenuse

What is tan(45°)?

Answer: 1

Play the full Trigonometry Quiz →

Eye Anatomy Quiz

10 questions · ~2 min · Medium · played 116 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

Play the full Eye Anatomy Quiz →

Macromolecules Quiz

10 questions · ~2 min · Medium · played 116 times

What are the building blocks of proteins?

Answer: Amino acids

Which of the following is a type of carbohydrate?

Answer: Glucose

In what year did Watson and Crick discover the structure of DNA?

Answer: 1953

Which type of macromolecule is primarily involved in energy storage?

Answer: Lipids

Play the full Macromolecules Quiz →

Glycolysis Quiz

10 questions · ~2 min · Medium · played 109 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

Play the full Glycolysis Quiz →

Skull Foramen Quiz

9 questions · ~2 min · Medium · played 107 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

Play the full Skull Foramen Quiz →

Animal Cell Quiz

10 questions · ~2 min · Medium · played 103 times

What organelle is known as the powerhouse of the cell?

Answer: Mitochondria

Which part of the animal cell contains the genetic material?

Answer: Nucleus

In what year did Theodor Schwann propose the cell theory?

Answer: 1838

Which of the following is NOT a function of the cell membrane?

Answer: Energy production

Play the full Animal Cell Quiz →

Want more science trivia?

These samples are a fraction of the 3.9K science trivia questions on DoQuizzes. Browse every quiz in the Science category, try the newest science quizzes, or write your own trivia questions with the free quiz maker. Hosting a quiz night? Read our guide to easy quiz ideas for first-time hosts.