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Science Quiz Questions

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28 questions available

All Science Quiz Questions

28 questions available

1. Which element has the chemical symbol 'O'?

  1. Osmium
  2. Osmium
  3. Oxygen
  4. Oganesson
Correct answer: Oxygen
Explanation: Oxygen has the chemical symbol 'O'.

2. Which planet is known as the Red Planet?

  1. Saturn
  2. Jupiter
  3. Mars
  4. Venus
Correct answer: Mars
Explanation: Mars is called the Red Planet due to its reddish appearance.

3. Which element has the atomic number 1?

  1. Helium
  2. Hydrogen
  3. Lithium
  4. Carbon
Correct answer: Hydrogen
Explanation: Hydrogen has the atomic number 1.

4. Would you rather be a famous actor or a successful scientist?

  1. Successful Scientist
  2. Famous Actor

5. What is the chemical symbol for gold?

  1. Fe
  2. Au
  3. Cu
  4. Ag
Correct answer: Au
Explanation: Au comes from the Latin word 'Aurum' which means gold.

6. What is the hardest natural substance on Earth?

  1. Granite
  2. Iron
  3. Diamond
  4. Steel
Correct answer: Diamond
Explanation: Diamond is the hardest natural substance on Earth.

7. What is the study of fossils called?

  1. Paleontology
  2. Geology
  3. Biology
  4. Archaeology
Correct answer: Paleontology
Explanation: Paleontology is the scientific study of fossils.

8. What is the chemical symbol for water?

  1. CO2
  2. H2O
  3. NaCl
  4. O2
Correct answer: H2O
Explanation: H2O is the chemical formula for water.

9. What is the largest planet in our solar system?

  1. Saturn
  2. Neptune
  3. Uranus
  4. Jupiter
Correct answer: Jupiter
Explanation: Jupiter is the largest planet in our solar system.

10. What is the closest planet to the Sun?

  1. Mars
  2. Venus
  3. Earth
  4. Mercury
Correct answer: Mercury
Explanation: Mercury is the closest planet to the Sun.

11. Who was the first woman to win a Nobel Prize?

  1. Jane Goodall
  2. Rosalind Franklin
  3. Dorothy Hodgkin
  4. Marie Curie
Correct answer: Marie Curie
Explanation: Marie Curie was the first woman to win a Nobel Prize in 1903.

12. What year did the United States land the first humans on the Moon?

  1. 1969
  2. 1972
  3. 1961
  4. 1965
Correct answer: 1969
Explanation: The United States landed the first humans on the Moon on July 20, 1969, during the Apollo 11 mission.

13. What metal impurity makes rubies red and emeralds green, and is added to iron to make steel resistant to corrosion?

  1. Copper
  2. Iron
  3. Chromium
  4. Nickel
Correct answer: Chromium
Explanation: Chromium is the key element that gives rubies and emeralds their vibrant colors and also enhances steel's resistance to rust.

14. Which items were included on the Voyager Golden Record?

  1. Blueprints of the vehicle
  2. Music
  3. Photos
  4. DNA diagram
Correct answers: Music, Photos, DNA diagram
Explanation: The Golden Record includes music, greetings, and scientific information, but not Voyager’s blueprints.

15. The first artificial satellite launched into space was ______, by the Soviet Union in 1957.

  1. Vanguard 2
  2. Apollo 1
  3. Sputnik 1
  4. Sputnik 2
Correct answer: Sputnik 1
Explanation: Sputnik 1 was launched in October 1957, marking the start of the space age.

16. Which was the first planet visited by Voyager 2 after launch?

  1. Jupiter
  2. Saturn
  3. Neptune
  4. Uranus
Correct answer: Jupiter
Explanation: After launching on August 20, 1977, the first planet Voyager 2 visited was Jupiter. It arrived at Jupiter in July 1979, followed by a flyby of Saturn in August 1981, then Uranus in January 1986, and finally Neptune in August 1989.

17. The term "light-year" refers to:

  1. A measure of distance
  2. A measure of brightness
  3. A measure of time
  4. The speed of light
Correct answer: A measure of distance
Explanation: A light-year is a unit of distance, representing how far light travels in one year (about 9.46 trillion km).

18. Voyager 2 has already left the Solar System and entered interstellar space.

  1. True
  2. False
Correct answer: True
Explanation: Voyager 2 entered interstellar space on November 5, 2018, making it the second human-made object to leave the Sun's protective bubble, known as the heliosphere.

19. What’s the name of the Sun’s protective bubble that surrounds our solar system?

  1. Asteroid Belt
  2. Exosphere
  3. Heliosphere
  4. Oort Cloud
Correct answer: Heliosphere
Explanation: The solar wind of our sun creates a protective bubble that surrounds our solar system, called the heliosphere.

20. Launched in 2021, the ______ Space Telescope is designed to study the universe in infrared wavelengths and has honeycomb-like mirrors.

  1. Spitzer
  2. Hubble
  3. James Webb
  4. Kepler
Correct answer: Hubble
Explanation: The James Webb Space Telescope observes the universe primarily in infrared, succeeding Hubble in many areas.

21. When was NASA’s Voyager 2 spacecraft launched?

  1. 1985
  2. 1973
  3. 1977
  4. 1981
Correct answer: 1977
Explanation: Voyager 2 was launched on August 20, 1977, about two weeks before its twin, Voyager 1.

22. What is the maximum number on the pH scale?

  1. 12
  2. 10
  3. 7
  4. 14
Correct answer: 14
Explanation: The highest value on the pH scale is 14, indicating a highly basic solution. The lower the number the acidic the solution is.

23. French astronomers discovered the lightest noble gas while observing a solar eclipse in 1868. What's the name of that gas?

  1. Fart
  2. Argon
  3. Methane
  4. Helium
Correct answer: Helium
Explanation: Helium is the lightest noble gas and was first identified during a solar eclipse; it actually gets its name from the Greek word 'helios,' meaning sun.

24. Which inventor developed over 300 products from peanuts and revolutionized Southern agriculture?

  1. George Washington Carver
  2. Lewis Latimer
  3. Granville Woods
  4. Garrett Morgan
Correct answer: George Washington Carver
Explanation: George Washington Carver, born into slavery, became a renowned scientist at Tuskegee Institute. His crop rotation methods and peanut products helped Southern farmers move beyond cotton dependency.

25. Which planet could theoretically float in water?

  1. Neptune
  2. Jupiter
  3. Saturn
  4. Mars
Correct answer: Saturn
Explanation: Saturn's density is only 0.687 g/cm³, less than water's 1 g/cm³, so it would float! Of course, you'd need an impossibly large ocean, and Saturn would eventually dissolve, but theoretically it works!

26. What order do the asteroidea belong to?

  1. Jellyfish
  2. Corals
  3. Sea urchins
  4. Starfish
Correct answer: Starfish
Explanation: Asteroidea is the scientific class name for starfish, which are known for their unique radial symmetry and regeneration capabilities.

27. Who was the first person to observe sunspots?

  1. Newton
  2. Kepler
  3. Copernicus
  4. Galileo
Correct answer: Galileo
Explanation: Galileo was the first to observe and document sunspots in the early 17th century, providing evidence that the sun is not a flawless sphere, as previously thought.

28. Which of these inventions were created by Irish people?

  1. The ejector seat
  2. Color photography
  3. The seismograph
  4. The submarine
Correct answers: The ejector seat, Color photography, The seismograph, The submarine
Explanation: All were Irish inventions! John Philip Holland (submarine), Robert Mallet (seismograph), John Joly (color photography), and James Martin (ejector seat) were all Irish inventors.

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