1. Sugar granules are rough when touched. What property of matter do the sugar granules exhibit?

A. Color
B. Hardness
C. Texture
D. Flexibility

2. A steel is not easily broken when hammered. It exhibits_________.

A. Color
B. Hardness
C. Texture
D. Elasticity

3. He believe that nature consisted of two things, "atoms and the void that surrounds them".

A. Dalton
B. Leucippus
C. Aristotle
D. Pythagoras

4. It is an ion found outside the cell that pays an important role in blood clotting. It is also a major ion in the bone and a muscle smoother.

A. Sodium
B. Magnesium
C. Calcium
D. Chlorine

5. What causes water droplets to form on the outside surface of glass containing ice?

A. Oxygen molecules in air condense on the glass
B. Water vapor molecules in air condense on the glass wall.
C. A chemical change happens, producing water droplets on the surface of the glass.
D. Water molecules from outside of the glass pass through the pores of the glass wall. ​