Checkpoint practice 2024 part 2

Front

What is temperature?

Back

A measure of the average kinetic energy of the particles in a substance.

Front

What is density?

Back

Density is the mass of an object divided by its volume, determining whether it will float or sink in a fluid.

Front

What happens to water vapor when it touches a cold surface?

Back

The water vapor in the air changes to a liquid when it touches the cold glass.

Front

What is a mixture?

Back

A combination of two or more substances where each retains its own properties.

Front

What is a chemical reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a physical combination of substances, while a compound is a chemical combination of elements.

Front

What is buoyancy?

Back

The ability of an object to float in a fluid, determined by its density compared to the fluid.

Front

What is rusting?

Back

A chemical reaction where iron reacts with oxygen and moisture to form iron oxide, commonly known as rust.

Front

What is evaporation?

Back

The process by which liquid water turns into water vapor.

Front

What is condensation?

Back

The process by which water vapor turns into liquid water.