Outer Space
What planet has the shortest year in our solar system?
Mercury
What is the largest organ in the human body?
The skin
What is the chemical symbol for potassium?
K
What is the name of the layer of Earth's atmosphere that contains the ozone layer?
The stratosphere
What 19th-century invention originally arranged keys alphabetically before being redesigned into the QWERTY layout?
The Typewriter
What phenomenon causes the apparent bending of light as it passes between substances of different densities?
Refraction
An average human performs what basic eye function about 20 times a minute, or over 10 million times a year?
Blink
What is the pH of a neutral solution at room temperature?
7
What scale is used to measure the magnitude of earthquakes today, replacing the older Richter scale in many contexts?
The moment magnitude scale
Who is credited with inventing the World Wide Web?
Tim Berners-Lee
What type of star is the sun classified as?
A yellow dwarf / G-type main-sequence star
How many vertebrae are there in the cervical (neck) spine of a human?
7
What element has the atomic number 26?
Iron
What is the name of the supercontinent that existed hundreds of millions of years ago?
Pangaea
What 4,000-year-old invention, developed in ancient Mesopotamia and Egypt, was made by fusing silica, soda, and lime?
Glass
What is the term for the point in a planet’s orbit when it is closest to the sun?
Perihelion
What immune cells are primarily responsible for producing antibodies?
Plasma cells (also acceptable B cells / B lymphocytes)
What gas is represented by the chemical formula CH₄?
Methane
While Mount Everest is the highest above sea level, what is the tallest mountain on Earth when measured from its underwater base to its peak?
Mauna Kea in Hawaii
What life-saving medical invention was created by Wilson Greatbatch in 1956 by accident when he plugged the wrong resistor into a heart-recording circuit?
The implantable pacemaker
What is the name of the surface outside the event horizon of a black hole where spacetime is dragged along at the speed of light, forcing everything inside it to rotate with the black hole?
Ergosphere
What is the only bone in the human body not connected to another bone?
The hyoid bone
Carbon fixation, reduction, carbohydrate formation, and regeneration are the four basic phases of what photosynthesis cycle?
Calvin cycle
What specific name is given to the point in the ocean that is farthest from any landmass on Earth?
Point Nemo
While Thomas Edison is famous for the incandescent lightbulb, who actually patented the carbon filament vacuum pump that made long-lasting bulbs commercially viable?
Lewis Latimer