Open Sci Ed 7.1

Front

What is evaporation?

Back

Evaporation is the process where liquid turns into gas.

Front

What does 'brittle' mean?

Back

'Brittle' means to break easily.

Front

What are the two types of pure substances?

Back

The two types of pure substances are elements and compounds.

Front

What happens at the boiling point?

Back

At the boiling point, a liquid turns into gas.

Front

Which state of matter is represented by a liquid?

Back

A liquid is one of the three states of matter, characterized by having a definite volume but no definite shape.

Front

What is a solid?

Back

A solid is a state of matter that has a definite shape and volume.

Front

What is a gas?

Back

A gas is a state of matter that has no definite shape or volume.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

Front

What is the difference between a pure substance and a mixture?

Back

A pure substance has a uniform and definite composition, while a mixture contains two or more substances that retain their individual properties.