Chemistry in Context

Stone Age

Stone Age

In the ________, people chipped pieces of flint into useful tools and carved wood into statues and toys.

Metals

________ were combined to form alloys- for example, copper and tin were mixed together to make bronze- and more elaborate smelting techniques produced iron.

Alcohol

________ was produced by fermentation and purified by distillation.

variety of drugs

A(n) ________ such as aloe, myrrh, and opium were isolated from plants.

Egypt

An amalgamation of chemical technologies and philosophical speculations was spread from ________, China, and the eastern Mediterranean by alchemists, who endeavored to transform "base metals "such as lead into "noble metals "like gold, and to create elixirs to cure disease and extend life.

Chemistry is sometimes referred to as "the central science "because

it interconnects with a vast array of other STEM disciplines.

Alkalis

________ were extracted from ashes, and soaps were prepared by combining these ________ with fats.

Humans

________ began to practice chemistry when they learned to control fire and use it to cook, make pottery, and smelt metals.

Chemistry

________: the study of the properties of matter and its structure.

Chemistry

the study of the properties of matter and its structure

Prehistoric times

beginning of the Christian era (black magic)

Beginning of the Christian era

end of 17th century (alchemy)

End of 17th century

mid 19th century (traditional chemistry)

Mid 19th century

present (modern chemistry)

A variety of drugs such as aloe, myrrh, and opium were

isolated from plants