A region of space having a gravitational field so intense that no matter or radiation can escape.
Black Hole
100
A landform along the shoreline of an ocean, sea, lake, or river with a loose surface of sand, gravel, shingle, pebbles, shells, stones or coral.
Beach
100
A hundred years.
Century
100
unable to pay debts
Bankrupt
100
Change from liquid to gas by heating over 100 degrees Celsius.
Boil
200
The distance from the top or surface of something to its bottom.
Depth
200
Height of an object in the atmosphere above sea level.
Altitude
200
Science of the origins and social relationships and culture of humans
Anthropology
200
the money paid by a borrower for the use of borrowed money
Interest
200
A solid yellow food made from cream
Butter
300
A mammal of an order that includes the lemurs, bushbabies, tarsiers, marmosets, monkeys, apes, and humans.
Primates
300
The Earth's outermost layer.
Crust
300
A union or association formed for mutual benefit, especially between countries or organizations.
Alliance
300
money, property, etc., that is used to start or operate a business
Capital
300
Cook with dry heat, usually in an oven
Roast
400
The standard unit of frequency in the International System of Units (SI), equal to one cycle per second.
Hertz
400
Mixture of particulate matter and chemical pollutants in the lower atmosphere, usually over urban areas.
Smog
400
A country or area under the full or partial political control of another country, typically a distant one, and occupied by settlers from that country.
Colony
400
An amount (such as an amount of money) that is less than the amount that is needed
Deficit
400
Cooking delicate foods in liquid that is hot but not boiling, 70 degrees Celsius.
Poaching
500
This is a protein molecule in red blood cells that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs.
Hemoglobin
500
The most northerly circle of latitude on the Earth at which the Sun may appear directly overhead at its culmination.
Tropic of Cancer
500
The right to vote in political elections.
Suffrage
500
A long period of time in which there is little economic activity and many people do not have jobs
Depression
500
Liquid made by cooking bones, meat, fish, or vegetables slowly in water, used as a basis for the preparation of soup, gravy, or sauces.