Physical & Chemical Changes Test Review

Front

What is a solution?

Back

A solution is a mixture where dissolved particles are distributed evenly and cannot be seen.

Front

What technique is best for separating soil and water?

Back

Filtration is the best technique for separating soil and water.

Front

Why does stirring help sugar dissolve in iced tea?

Back

Stirring makes the sugar dissolve more quickly.

Tags

NGSS.MS-PS3-4

Front

What is a salad an example of?

Back

A salad is an example of a mixture.

Front

What does it mean if a solution is concentrated?

Back

A concentrated solution has a higher amount of solute compared to solvent.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change occurs when a substance transforms into a different substance with different properties.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that retain their individual properties, while a compound is a substance formed when two or more elements chemically bond.

Front

What is decanting?

Back

Decanting is a technique used to separate liquids by pouring off the top layer, leaving the sediment behind.

Front

What is distillation?

Back

Distillation is a process that separates mixtures based on differences in boiling points.

Tags

NGSS.MS-PS1-4