Mid-Term Review - Quizizz #3

Which subatomic particle is NOT found in the nucleus?

• proton

• neutron

• electron

• they are all in the nucleus

Oxygen and iron combine chemically to form rust. Rust is classified as which of the following?

• atom

• element

• compound

• mixture

How many different elements are in the compound sodium carbonate (Na₂CO₃)?

• 3

• 1

• 6

• 7

Which of the following is an example of a physical change? 

• rusting of iron

• lighting a match

• burning of gasoline

• breaking a glass

A force in the opposite direction to the motion of the object will cause the object to...

• speed up

• turn

• slow down

• crash

Which of the following units best represents the density of an object?

• kg

• hr

• m/s²

• g/cm³

In an experiment, the factor that we measure is called the

• independent variable

• dependent variable

• control

  (control variable)

• conclusion