Biology
Physics
History
Tech
100

The powerhouse of the cell

Mitochondria

100

The phenomenon that Archimedes explains in Archimedes' principle

Buoyancy

100

The largest empire ever established

The British Empire

100

The company that created the first "smartphone"

IBM

200

There are 3 main types of these in the body: smooth striated & cardiac

Muscles

200

Some versions of this 6-letter theory said that space-time had exactly 10 dimensions

String Theory

200

The last of the seven ancient wonders still standing today

The Great Pyramid of Giza

200

The writer who created the Three Laws of Robotics 

Isaac Asimov

300

The area of biology devoted to the study of fungi

Mycology

300

The term for the minimum amount of fissile material needed to achieve a self-sustaining chain reaction

Critical Mass

300

Around 200 B.C. an anonymous Chinese innovator froze rice milk & spices in a paste creating this type of this dessert

Ice Cream

300

The fully written form of the acronym LASER

Light Amplification by Stimulated Emission of Radiation

400

An organism with cells that have more than one distinct genotype

Chimera

400

This substance comprises around a quarter of the "stuff" in the universe

Dark Matter

400

The name of the RMS Titanic's sister ship that befell a similar fate

HMHS Britannic

400

The year unix time will fail

2038

500

An animal that has been around for 450 million years and has blue blood

Horseshoe crab

500

This person received the first Nobel prize in his field by taking a new kind of photo

Wilhelm Conrad Röntgen

500

One of the worlds oldest writing systems (not including pictograms or hieroglyphs)

Cuneiform

500

Apple's first tablet computer

Newton MessagePad