Human Body
Space
Inventions
Math & Logic
Nature
100

What organ pumps blood through the body?

The heart

100

What is Earth's natural satellite called?

The Moon

100

Who is commonly credited with inventing the telephone?

Alexander Graham Bell

100

What is 12 times 12?

144

100

What sweet food do bees make?

Honey

200

What is the largest organ of the human body?

The skin

200

What planet is known as the Red Planet?

Mars

200

What inventor is strongly associated with the practical incandescent light bulb?

Thomas Edison

200

What is an eight-sided polygon called?

Octagon

200

Name a mammal that lays eggs.

Platypus (or echidna)

300

How many bones are in the typical adult human body?

206

300

What is the largest planet in our solar system?

Jupiter

300

Who developed the movable-type printing press in Europe?

Johannes Gutenberg

300

What kind of number is divisible only by 1 and itself?

Prime number

300

What is the process called when water vapor becomes liquid water?

Condensation

400

What protein carries oxygen in red blood cells?

Hemoglobin

400

What galaxy contains our solar system?

The Milky Way

400

Who invented the World Wide Web?

Tim Berners-Lee

400

What is (5! x 3! x 2!)

(1 minute)

1440

400

What cold biome is known for permafrost?

Tundra

500

What is the smallest bone in the human body?

The stapes

500

What is the boundary around a black hole called, beyond which light cannot escape?

The event horizon

500

Edward Jenner developed the first successful vaccine against what disease?

Smallpox

500

What is pi rounded to ten decimal places?

3.1415926535

500

What organism is a partnership between a fungus and algae or cyanobacteria?

Lichen