2024 Chemistry Flashcard 1 Review

Front

What causes bubbles to form on the outside of a bottle when using a soap solution?

Back

The molecules spread farther apart needing more room.

Front

What is the smallest unit of an element?

Back

An atom.

Front

What must water gain in order to evaporate or melt?

Back

Energy.

Tags

NGSS.MS-PS1-4

Front

How can you determine if a molecule is moving fast?

Back

It will have 3 motion lines.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Front

Why does food coloring mix slower in cold water?

Back

The molecules move slower.

Tags

NGSS.MS-PS1-4

Front

What is the definition of an atom?

Back

The smallest unit of an element that retains the properties of that element.

Tags

NGSS.MS-PS1-1

Front

What is the relationship between temperature and molecular movement?

Back

As temperature increases, molecular movement increases.

Tags

NGSS.MS-PS1-4

Front

What is evaporation?

Back

The process by which molecules at the surface of a liquid gain enough energy to enter the gas phase.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Front

What is the role of energy in phase changes of water?

Back

Energy is required for water to change from solid to liquid (melting) or from liquid to gas (evaporation).

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What does it mean for molecules to spread apart?

Back

It refers to the increase in distance between molecules, often due to an increase in temperature or energy.

Tags

NGSS.MS-PS1-4