2025 Unit 1 Test Review

How is mass defined?

• a measure of the amount of matter

• one kilogram

• the composition of a substance

• something that takes up space

Which of the following quantitative data could you collect as evidence of a chemical reaction?

• change in taste

• change in color

• change in texture

• change in temperature

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

On the Kelvin temperature scale, which value approximately represents the freezing point of water?

• 273

• 32

• 0

• 100

The graph represents the sales data for a particular product. In which week were 8 units sold?

• 9th week

• 4th week

• 3rd week

• 6th week

Tags

NGSS.MS-PS3-1

How does traveling in an airplane 10 km above ground level affect a person's mass and weight compared to being at ground level?

• mass and weight remain the same

• mass decreases, weight decreases

• mass increases, weight decreases

• mass remains the same, weight decreases

Tags

NGSS.MS-PS2-4

A 26.0 g sample of a liquid was found to have a volume of 13.0 mL. What is the density of the liquid?

• 0.50 g/mL

• 338 g/mL

• 2.0 g/mL

• 39.0 g/mL

Which is the term used for the measurement of the average kinetic energy of the particles of a substance?

• density

• length

• temperature

• mass

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

An object has a mass of 26.94 grams and a volume of 2.568 cubic centimeters. What material is it likely to be made of?

• iron

• gold

• silver

• copper

The accepted value is 1.43. Which correctly describes this student’s experimental data?

• both accurate and precise

• precise but not accurate

• accurate but not precise

• neither accurate nor precise

Which is the independent variable in this experiment?

• amount of salt added

• time required for water to boil

• boiling temperature

• volume of water