2024 FALL SEMESTER EXAM REVIEW

Front

Are horseplay, jokes, and pranks appropriate in the science classroom at any time?

Back

False

Front

What is the phase change called when dry ice changes directly from a solid to a gas without becoming liquid?

Back

Sublimation

Front

What type of property is luster?

Back

Physical Property

Front

What type of change do fireworks represent?

Back

Chemical change

Front

What should you do if you are not sure what to do during a lab activity?

Back

Ask a teacher

Front

What is the definition of a chemical change?

Back

A process where substances combine or break apart to form new substances.

Front

What is the definition of a physical property?

Back

A characteristic of a substance that can be observed without changing its identity.

Front

What is an example of sublimation?

Back

Dry ice turning into carbon dioxide gas.

Front

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

Back

A physical change alters the form of a substance, while a chemical change alters its chemical composition.

Front

What is condensation?

Back

The process where gas turns into a liquid.