Unit 1 and 2 Review

Which of the following is NOT a pure substance?

• Milk

• Oxygen

• Water

• Carbon dioxide

What type of change must occur to form a compound?

• Physical

• Nuclear

• Chemical

• Phase

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

During a phase change, temperature ________________.

• Increases

• Decreases

• Remains the same

• Cannot be determined

Tags

NGSS.MS-PS1-4

Which of the following is a chemical change?

• Ripping paper

• Forming copper into a wire

• Boiling water

• Burning wood

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a physical change?

• Iron rusting

• Burning wood

• Crushing ice

• Metal corroding

All of the following are chemical changes except:

• Burning of gasoline

• Dissolving sugar in coffee

• Rusting car

• Digesting food

Tags

NGSS.MS-PS1-2

Identify the following substances as an element, compound, homogeneous mixture, or heterogeneous mixture: Hydrogen.

• Element

• Compound

• Homogeneous mixture

• Heterogeneous mixture

Identify the following substances as an element, compound, homogeneous mixture, or heterogeneous mixture: Milk.

• Element

• Compound

• Homogeneous mixture

• Heterogeneous mixture

Identify the following substances as an element, compound, homogeneous mixture, or heterogeneous mixture: Salad dressing.

• Element

• Compound

• Homogeneous mixture

• Heterogeneous mixture

Identify the following substances as an element, compound, homogeneous mixture, or heterogeneous mixture: Carbon dioxide.

• Element

• Compound

• Homogeneous mixture

• Heterogeneous mixture

Tags

NGSS.MS-PS1-1