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| By Cpons

Cpons

Community Contributor

Quizzes Created: 6 | Total Attempts: 6,678

Questions: 10 | Attempts: 195 | Updated: Mar 20, 2023

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The human brains has been said to be a very powerful tool and one does not have to be an Elon to know that science does have a lot of the answers regarding the world we live in. The questions below are designed to test just how much of a science geek you are. Try it!

Questions and Answers

1.

Name the newly classified "dwarf planet".
- A.
  
  Earth
- B.
  
  Mars
- C.
  
  Jupiter
- D.
  
  Pluto
- E.
  
  Mercury
Correct Answer
D. Pluto

Explanation
Pluto is the correct answer because it was classified as a "dwarf planet" in 2006 by the International Astronomical Union (IAU). Before that, it was considered the ninth planet in our solar system. However, the IAU redefined the criteria for what qualifies as a planet, and Pluto did not meet all the requirements. It is now classified as a dwarf planet, along with other celestial bodies like Eris and Ceres.

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2.

What percentage of the average human brain is water?
- A.
  
  10%
- B.
  
  30%
- C.
  
  80%
- D.
  
  40%
- E.
  
  95%
Correct Answer
C. 80%

Explanation
The correct answer is 80% because water is a major component of the human brain. It helps to regulate body temperature, cushion the brain and spinal cord, and transport nutrients and waste products. The brain is made up of about 75-80% water, which is why staying hydrated is important for optimal brain function.

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3.

What was the first human organ to be successfully transplanted?
- A.
  
  Brain
- B.
  
  Kidney
- C.
  
  Eye
- D.
  
  Heart
- E.
  
  Liver
Correct Answer
B. Kidney

Explanation
Dr. Richard Lawler performed the transplant in 1956 in Chicago. His patient, Ruth Tucker, lived for five years with her new kidney.

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4.

How long does a nanosecond last?
- A.
  
  One billionth of a second
- B.
  
  One thousandth of a second
- C.
  
  There is no such thing as a nanosecond
- D.
  
  One hundredth of a second
- E.
  
  One tenth of a second
Correct Answer
A. One billionth of a second

Explanation
A nanosecond is a unit of time that is equal to one billionth of a second. It is a very short duration of time and is commonly used in scientific and technological fields to measure extremely fast processes or high-frequency events.

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5.

How many pounds of lunar rock and soil were collected and brought back to Earth from Amereica's six expeditions to the moon?
- A.
  
  841.6
- B.
  
  2000
- C.
  
  250
- D.
  
  100
- E.
  
  100,000
Correct Answer
A. 841.6

Explanation
The answer 841.6 is the correct answer because it represents the pounds of lunar rock and soil that were collected and brought back to Earth from America's six expeditions to the moon.

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6.

What body of water was affected by the Deep Water Horizon?
- A.
  
  Pacific Ocean
- B.
  
  Aral Sea
- C.
  
  Gulf of Mexico
- D.
  
  Hudson Bay
- E.
  
  Gulf of Oman
Correct Answer
C. Gulf of Mexico

Explanation
The Deep Water Horizon incident refers to the oil spill that occurred in 2010. The explosion and subsequent oil spill happened in the Gulf of Mexico, affecting the marine life, ecosystems, and coastal areas in the region. The spill was one of the largest environmental disasters in history, causing extensive damage to the Gulf of Mexico's waters and coastline.

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7.

How fast does light travel through space?
- A.
  
  450,000 miles per second
- B.
  
  186,000 miles per second
- C.
  
  Light does not travel through space
- D.
  
  100 miles per hour
- E.
  
  1000 miles per hour
Correct Answer
B. 186,000 miles per second

Explanation
Light travels through space at a speed of 186,000 miles per second. This is the speed of light in a vacuum, which is the fastest speed that anything can travel in the universe. Light can travel through space because it is made up of particles called photons, which do not require a medium like air or water to move through. This high speed allows light to cover vast distances in a short amount of time, making it possible for us to see objects in space that are millions or even billions of light-years away.

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8.

What is the "lead" in a lead pencil?
- A.
  
  Gold
- B.
  
  Aluminum
- C.
  
  Graphite
- D.
  
  Garnet
- E.
  
  Lead ore
Correct Answer
C. Graphite

Explanation
The "lead" in a lead pencil is actually graphite. Graphite is a soft, black mineral that is commonly used in pencils due to its ability to leave a mark on paper. Despite its name, graphite does not contain any lead. The use of the term "lead" for the core of a pencil originated in the 16th century when graphite was mistaken for a form of lead.

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9.

What part of the body is the Brannock devide used to measure?
- A.
  
  Hair length
- B.
  
  Foot
- C.
  
  Leg length
- D.
  
  Vision from eyes
- E.
  
  Fingernail length
Correct Answer
B. Foot

Explanation
It is the device used in shoe stores to determine your shoe size.

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10.

Pine wood ignites at 800 degrees F. At what temperature does charcoal ignite?
- A.
  
  212 degrees F
- B.
  
  580 degrees F
- C.
  
  350 degrees F
- D.
  
  499 degrees F
- E.
  
  100 degrees C
Correct Answer
B. 580 degrees F

Explanation
Charcoal is a more stable fuel compared to pine wood, therefore it requires a higher temperature to ignite. The given answer of 580 degrees F implies that charcoal ignites at this temperature.

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Current Version
Mar 20, 2023

Quiz Edited by
ProProfs Editorial Team
Aug 20, 2010

Quiz Created by
Cpons

Science Trivia Designed By Cpons

Name the newly classified "dwarf planet".

What percentage of the average human brain is water?

What was the first human organ to be successfully transplanted?

How long does a nanosecond last?

How many pounds of lunar rock and soil were collected and brought back to Earth from Amereica's six expeditions to the moon?

What body of water was affected by the Deep Water Horizon?

How fast does light travel through space?

What is the "lead" in a lead pencil?

What part of the body is the Brannock devide used to measure?

Pine wood ignites at 800 degrees F. At what temperature does charcoal ignite?