Space and Astronomy
The Human Body
Inventive Minds
Everyday Science
Digital World
100

This planet is especially famous for its broad, bright system of rings.

What is Saturn?

100

This muscular organ pumps blood around the body.

What is the heart?

100

These American brothers flew the powered aircraft Flyer near Kitty Hawk in 1903.

Who are the Wright brothers?

100

This force keeps planets in orbit around the Sun and pulls dropped objects toward Earth.

What is gravity?

100

The letters AI stand for this two-word term.

What is artificial intelligence?

200

This is the largest planet in our Solar System.

What is Jupiter?

200

These blood cells use haemoglobin to carry oxygen.

What are red blood cells?

200

This inventor received a famous US telephone patent in 1876.

Who is Alexander Graham Bell?

200

When water in a puddle slowly changes from liquid to gas, this process occurs.

What is evaporation?

200

Wireless headphones commonly use this short-range technology, named after a Scandinavian king.

What is Bluetooth?

300

Despite having “year” in its name, this astronomical unit measures distance.

What is a light-year?

300

This brain region helps coordinate balance and movement; its name means “little brain”.

What is the cerebellum?

300

This German printer developed a movable-metal-type printing system in fifteenth-century Europe.

Who is Johannes Gutenberg?

300

The chemical symbol Cu stands for this metal, widely used in electrical wiring.

What is copper?

300

In computing, CPU stands for this three-word component name.


What is central processing unit?

400

This boundary around a black hole marks the point beyond which light cannot escape to distant observers.

What is the event horizon?

400

This organ produces insulin to help regulate blood glucose.

What is the pancreas?

400

This British computer scientist invented the World Wide Web while working at CERN.

Who is Tim Berners-Lee?

400

This bending of light makes a straw appear displaced where it enters a glass of water.

What is refraction?

400

A fake bank message that tricks you into entering your password on a fraudulent website is an example of this scam.

What is phishing?

500

When light is shifted toward longer wavelengths, astronomers call the effect this.

What is redshift?

500

These tiny air sacs in the lungs are the main sites of gas exchange with the blood.

What are alveoli?

500

This Hollywood actress co-developed a frequency-hopping communication system with composer George Antheil.

Who is Hedy Lamarr?

500

A changing magnetic flux through a circuit produces an electromotive force by this process.

What is electromagnetic induction?

500

The binary number 101101 represents this number in the decimal system.

What is 45?

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