Unit 1 Properties of Matter

Which type of mixture is homogeneous and allows light to pass through?

• Solutions

• Colloids

• Suspensions

• Emulsions

Tags

NGSS.MS-PS4-2

In which type of mixture are the particles visible and do not allow light to pass through?

• Solutions

• Colloids

• Suspensions

• Alloys

What type of mixture is characterized by being heterogeneous with visible particles?

• Solutions

• Colloids

• Suspensions

• Compounds

A student creates a solution of salt water by dissolving salt into water. Which statement BEST classifies salt water as a homogeneous or heterogeneous mixture?

• Salt water is a homogeneous mixture because the solute is evenly distributed throughout the solvent.

• Salt water is a homogeneous mixture because the solute is unevenly distributed throughout the solvent.

• Salt water is a heterogeneous mixture because the solute is evenly distributed throughout the solvent.

• Salt water is a heterogeneous mixture because the solute is unevenly distributed throughout the solvent.

A student adds 5 grams of salt (NaCl) to water (H₂O) to make salt water. Use the drop-down menus to classify salt and salt water as a compound or mixture.

• Salt is a compound; salt water is a mixture.

• Salt is a mixture; salt water is a compound.

• Both salt and salt water are compounds.

• Both salt and salt water are mixtures.

A phase change diagram for water is shown. Which statement BEST describes the changes in potential and kinetic energy at point B?

• A. Potential energy is decreasing while kinetic energy is increasing.

• B. Potential energy is increasing while kinetic energy is decreasing.

• C. Potential energy remains constant while kinetic energy is increasing.

• D. Potential energy is increasing while kinetic energy remains constant.

Tags

NGSS.MS-PS1-4

In the phase change diagram for water, what phase change occurs at point D as energy increases?

• Melting

• Freezing

• Evaporation

• Condensation

A phase change diagram for water is shown. Which statement BEST describes the changes in energy at Point C?

• Kinetic energy is increasing.

• Kinetic energy is decreasing.

• Potential energy is increasing.

• Potential energy is decreasing.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-2

What process occurs when a solid turns into a liquid?

• Condensing

• Freezing

• Melting

• Evaporating

Tags

NGSS.MS-PS1-4

What process occurs when a liquid turns into a gas?

• Freezing

• Evaporating

• Melting

• Condensing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4