8.1.1-.2 Review

Front

What can models help scientists do?

Back

Communicate ideas.

Front

What is a weakness of models in terms of accuracy?

Back

Models may not be accurate due to oversimplification.

Front

What was the primary method used by Democritus to study materials?

Back

Crushing.

Front

Which one of these is a chemical property?

Back

Acidity.

Front

What is a physical property?

Back

A physical property is something that can be observed about the substance by itself.

Front

What is the definition of a model in science?

Back

A representation of an object or system that helps to explain and predict its behavior.

Front

What is an example of a physical property?

Back

Melting point.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not alter the substance's chemical composition, while a chemical change does.

Front

What is an example of a chemical change?

Back

Rusting of iron.

Front

What does it mean for a model to be oversimplified?

Back

It means the model does not include all the complexities of the real system.