Amplify Unit 2 Chapter 3

Front

What happens when the molecules of a solid are attracted to the molecules of a liquid?

Back

They spread apart and mix together evenly.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

Which ingredient is least likely to dissolve in water?

Back

Dirt.

Front

Which two liquid molecules are most likely to be attracted to each other due to similar properties?

Back

Water and vinegar molecules.

Front

How does temperature affect the dissolution of sugar in tea?

Back

The sugar will dissolve faster in hot tea than in iced tea.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What observation might indicate a chemical reaction when mixing a powder with a liquid?

Back

The mixture changes color, such as turning yellow.

Tags

NGSS.MS-PS1-2

Front

Define a mixture.

Back

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

Front

What is a solution?

Back

A homogeneous mixture where one substance is dissolved in another.

Front

What is the role of temperature in the solubility of solids in liquids?

Back

Higher temperatures generally increase the solubility of solids in liquids.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

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

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Tags

NGSS.MS-PS1-5

Front

What is solubility?

Back

The ability of a substance to dissolve in a solvent at a given temperature and pressure.

Tags

NGSS.MS-PS1-2