Physical and chemical properties and changes

Which statement describes a chemical property of water?

• The melting point of water is 0°C.

• Water will dissolve sodium chloride, or table salt.

• Water forms beads on a waxy surface.

• a. Under the proper conditions, water will break apart into hydrogen and oxygen gas.

1. A chemical change occurs when a piece of wood

• splits.

• decays.

• is painted

• is cut

1. Which of the following processes involves a change in physical properties?

• rusting

• fermenting

• boiling

• burning

1. The resistance of a fluid to flow is called

• Viscosity

• Energy

• Density

• Pressure

1. If an object is broken in half, it will have

• Less density

• More volume

• More mass

• The same density

What describes when a boat floats on water?

• Viscosity

• Density

• Buoyancy

• Pressure

1. As the viscosity of a liquid increases, the liquid —

• a. evaporates more quickly

• a. pours more slowly

• a. conducts electricity

• a. pours more quickly

1. ____ Perfume evaporating on your skin

• Physical property

• Chemical Property

A nail rusting

• Physical Property

• Chemical Property

What two things are needed to find the density of an object?

• Mass and Velocity

• Mass and volume

• Speed and mass