Money, Money, Money
Three Straight Consonants
Don't You Know
Science Guys
X Games
100

The name of this British monetary unit comes from a unit of weight

a pound

100

By any measure this object is 36 inches long

yardstick

100

Oxford says this preposition is the 7th-most common word in English; it's in this clue twice

in

100

This Austrian monk found pairs of genes separate in a random fashion when a plant's gametes form

Mendel

100

This number is represented by the Roman numeral X

10

200

From 1792 to 1873 the U.S. issued silver 5-cent coins called not nickels but "half" these

dimes

200

Beware not to infringe upon this, which can be identified by a letter "C" enclosed within a circle

copyright

200

Because of metal shortages, from 1943 to 1945 these famous award statuettes were made of plaster

Oscars

200

Surely this rings a bell: the name of this physiologist who studied the secretory activity of digestion from 1890 to 1900

Pavlov

200

In a letter or message, an X symbolizes one of these

a kiss

300

The Lincoln Memorial is on the back of this U.S. bill

the $5

300

This word is a synonym for versus

against

300

The traditional "Big 3" of U.S. automakers are Chrysler, General Motors & this one

Ford

300

This Swede's original scale had water's boiling point at 0 degrees & its freezing point at 100

Celsius

300

This male first name starting with "X" is also a Jesuit university in Cincinnati

Xavier

400

A silver tetradrachm from the 300s B.C. features a great portrait of him

Alexander the Great

400

It's a belief, not based in reason, that something bad will happen if you perform a particular action... or if you don't

superstition

400

This state's richest man is French fry tycoon Scott Simplot

Idaho

400

This giant of modern physics was diagnosed with ALS as a graduate student at Cambridge

Hawking

400

In the 1637 work "Geometrie" he introduced the use of X, Y & Z as symbols of unknown quantities

Descartes

500

English settlers in the New World used this word from Algonquian for beads used as Indian money
f

wampum

500

One definition is a stitched-together type of publication having between 5 & 48 pages

pamphlet

500

This alloy of copper & tin gave its name to a cultural "Age"

bronze

500

This Rome-born physicist designed the first nuclear reactor

Enrico Fermi

500

X Division at this New Mexico national lab is the USA's center for the physics of nuclear weapons

Los Alamos