Physical And Chemical Properties And Changes Question Preview (ID: 58935)


McGraw Hill Physical Science Chapter 7 Review. TEACHERS: click here for quick copy question ID numbers.

The Law of Conservation of matter states that the total amount of matter ______________ after it undergoes change.
a) disappears
b) weighs less
c) stays the same
d) explodes

An oreo cookie weighs 20 grams. It gets crushed into crumbs for a recipe. How much do its crumbs weigh?
a) 40 grams
b) 20 grams
c) 10 grams
d) 2 grams

What part of matter can be observed with the senses like size, shape, color, and how it feels?
a) physical property
b) solid
c) liquid
d) gas

Physical properties are
a) chemical changes
b) are properties that can be observed without changing the matter's identity
c) are properties that can be observed that change matter into new matter with new properties
d) parts of an atom

Anything that has mass and takes up space
a) matter
b) mass
c) volume
d) density

This force controls weight
a) friction
b) gravity
c) wind resistance
d) buoyancy

Which of the following examples provides evidence of a PHYSICAL change?
a) Wood is burned and releases smoke and ash
b) Iron rusts over time
c) When mixed, baking soda and vinegar form gas bubbles
d) Boiling water bubbles when heat is added

Which of the following options provides evidence of a CHEMICAL change?
a) Wood is burned and releases smoke and ash
b) Rocks separate when soil is sifted
c) Salt dissolves in water
d) Boiling water bubbles when heated

Water is boiling on a stove, producing steam. What conclusion can you make about the change that is occurring?
a) Boiling water bubbles indicate a chemical change
b) Steam indicates a state of matter change
c) Heat indicates a chemical change
d) The clear color indicates a chemical change

Which of the following is true?
a) A physical change produces a new substance
b) A chemical change does not produce a new substance
c) A physical change can produce a precipitate
d) A chemical change can produce a new substance

Is cutting an apple into slices an example of a physical change or a chemical change?
a) physical
b) chemical
c)
d)

Deposition is the phase change in which a gas turns straight into a ____________ without first turning into a liquid.
a) liquid
b) gas
c) solid
d)

What phase change is occurring when substances like dry ice turn straight from a solid to a gas?
a) sublimation
b) deposition
c) evaporation
d) freezing

This must be added or removed in order for a phase change to occur.
a) water
b) thermal energy
c) friction
d) fuel

When you see drops of liquid water on your cold soda can caused by cooling of the water vapor in the air, ______________ has occurred.
a) freezing
b) condensation
c) sublimation
d) melting

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