sub-
pre-
circum-
micro-
re-
100
A ship travelling underwater

What is a submarine?

100

An order for medicine written by a physician

What is a prescription?

100

a fact or condition relevant to an action

What is circumstance?

100

An instrument that magnifies very small objects or entities

Whatis a microscope?

100

To fix something that is broken 

What is to repair?

200

A person or thing acting in place of another

What is a substitute?

200

To view something before it becomes generally known

What is to preview?

200

The distance around a circle

What is circumference?

200

A type of oven that uses high frequency, electromagnetic waves to cook food

What is a microwave?

200

No longer needed or useful

What is redundant?

300

matter with uniform qualities

What is a substance?

300
Rain, sleet, snow, or hail that falls to the ground

What is precipitation?

300

To travel around the globe

What is to circumnavigate?


300

A branch of science that deals with microorganisms

What is microbiology?

300

To leave the work force after attaining a certain age

What is retire?

400

An area of academic study

What is a subject?

400

To keep something from happening

What is to prevent? 

400

To be reserved or guarded, unwilling to take risks

What is circumspect?

400

An instrument used to magnify the sound of the human voice

What is a microphone? 

400

To investigate systematically

What is to research?

500

The opposite of objective

What is a subjective?

500

An introduction to a book

What is a preface?

500

To sidestep, avoid, or find a way around

What is circumvent?

500

Film containing microphotographs of a newspaper or other important documents

What is microfilm?

500

The belief in and worship of a superhuman God

What is religion?

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