1. What is the physical state of water at 122 °?
A. Solid
B. Liquid
C. Gas
D. Plasma

2. When an ice cream melts, the particles of it _________________.
A. there are no particles in ice cream
B. gain thermal energy and speed up
C. stay the same
D. lose thermal energy and slow down

3. Which statement about heat and temperature is CORRECT?
A. Heat does not affect the physical properties of matter.
B. Heat flows from hot objects to cold objects.
C. Thermal equilibrium is achieved when objects have different temperatures.
D. Heat flows from cold objects to hot objects.