1. This property of matter describe how hard or soft an object.

A. color
B. luster
C. hardness
D. texture

2. Which of the following is true about solid?

A. The molecules of solid do not move
B. The molecules of solid are very far
apart
C. Solid retained their volumes but not
their shapes.
D. The intermolecular force in solids is
greater than in liquid


3.A drop of food coloring placed into a
glass of water spreads out evenly. What does
this evidence suggest?

A. A particles in matter are moving
B. Water contains positive and negative
charges
C. Water flows inside a cup just like a
river
D. Water can support many kids of living
things

4. The atomic model by Democritus and
Leucippus different in many ways from
Dalton's atomic model except

A. All matter is composed of small
indivisible particles called atoms.
B. Atoms come in different shapes and
sizes.
C. Atoms have different masses
D.. All atoms of a given element are
identical

5. When a gas is compressed, which of the
following happens?

A. The number of molecule decreases
B. There is a decrease in the mass
number
C. The total energy of the system
decreases
D. The distance between molecule
decreases
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