A property that is measured or observed by changing the identity of the substance.

Chemical Property

A property that is measured or observed without changing the identity of the substance.

Physical Property

The mass of an object is what kind of property?

A physical property.

(The object stays the same while the mass is measured)

Is the volume of water measured with or without changing the identity of water?

Without

(Volume is a physical property, water stays the same while it's volume is measured.)

Density is this kind of property                    .

Physical

Are mg/L a possible unit for density?

Yes.

(Any unit that is mass over volume is possible.)

Sawing a piece of wood in two is which kind of change?

Physical Change

(The wood is still wood, it is just smaller if it is sawed.)

Bubbling of gas, or effervescence, indicates what kind of change?

A chemical change.

Mixing vinegar and baking soda is an example of what kind of change for both substances?

A chemical change.

(The vinegar and baking soda react chemically.)

A car rusting is an example of what kind of change?

A chemical change.

(The iron reacts with the oxygen in the air to form rust. The iron becomes a new substance.)

How a substance reacts is what kind of property?

A chemical property.

(If it reacts the substance is changed.)

The smell of a solid is what kind of property?

A physical property.

(The smell can be observed without changing the substance.)

Baking a cake is what kind of change?

Chemical

(The cake is different as batter and as baked cake. It looks, feels, and tastes different.)

Crumpling up a piece of paper is what kind of change?

A physical change.

(The paper is still paper, it just lookd different.)

What kind of change happens when wood is burned?

Chemical

(The wood becomes ash and will never go back to wood.)

What kind of change is cracking open an egg?

Physical

(The egg is still an egg, it just looks different.)

The method that measures the change in water volume when an object is added is called                     .

Displacement

(Based on the law of impenetrability.)

What does the law of impenetrability say?

Two objects can't be in the exact same place at the exact same time.

What kind of property is the texture of an object?

Physical

Ice melting is an example of what kind of change?

A physical change.

(The substance is still water.)