Here's Question 1! How many traditional senses are recognized by humans?
Sensational!
Uh-oh. That was incorrect. 😔
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How many major blood types are there in the human ABO system?
Great job!
Having difficulty with this one?
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How many chromosomes are there in a typical human cell?
Nice!
That was incorrect.
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The number of bones in an adult human skeleton is typically:
You're one class act!
That was incorrect.
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The average lifespan of a human red blood cell is about:
How many chambers are there in a human heart?
You've got it! 🥳
Not quite right. 😢
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How many elements are on the periodic table?
A water molecule (H₂O) contains how many oxygen atoms?
Sweet!
Not quite right. 😢
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At what temperature do Celsius and Fahrenheit scales read the same value?
At what temperature does water boil at sea level (in Celsius)?
The density of water at room temperature is:
Woohoo! 🥳
Nope, sorry. 😢
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The speed of light in a vacuum is approximately:
Perfect! 👊
Hmm, I don't think so. 😔
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Celebrate your progress! You're halfway through the quiz! The pH of pure water is approximately:
You're one class act!
Not quite right. 😢
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The average speed of sound in dry air at room temperature is:
You're doing great!
Hmm, I don't think so. 😔
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A typical magnet has how many poles?
That's great!
That was incorrect.
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The electromagnetic spectrum encompasses a wide range of radiation types. How many main regions are traditionally recognized within this spectrum?
Stunning!
Uh-oh. That was incorrect. 😔
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The structure of the earth is divided into how many major components?
Absolutely right! 👍
Hmm, I don't think so. 😔
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The gravitational acceleration on Earth is approximately:
You're doing great!
Having difficulty with this one?
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How long does it take for Earth to make one rotation on its axis?
You're one class act!
Doh! 🤬
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The Earth is both spinning on its axis and orbiting the Sun at the same time. How long does it take for Earth to orbit the Sun?
Cool! 👍
Uh-oh. That was incorrect. 😔
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Earth is estimated to be approximately how many years old?
Boom! Nailed it! 👊
Doh! 🤬
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Keep up the momentum! Scientists estimate the universe to be approximately how many years old?
Terrific! 🥳
Not quite right. 😢
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You're almost done! Excluding dwarf planets, how many planets are currently recognized in our solar system?
Outstanding!
Not quite right. 😢
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And last but not least, approximately how many years ago did the dinosaurs become extinct?
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