Open Court Unit 2 Lesson 1 Vocab 4th Grade

Front

What most people think of a person or thing

Back

Reputation

Front

Energy emitted as waves or tiny particles

Back

Radiation

Front

A condition or event causing opposing ideas with strong feelings.

Back

controversial

Front

to make a careful study of

Back

observe

Front

A heavy, soft gray metal that is easy to bend and melt.

Back

Lead

Front

Relating to a steady, glowing light

Back

luminous

Front

Able to achieve desired results with minimal time or effort.

Back

Efficient

Front

to talk together

Back

converse

Front

Positions or locations of something

Back

sites

Front

Condition/event that accelerates another.

Back

catalyst