When evaluting a hypothesis,
scientists often use the
words supports or does
not support instead of
proves or disproves when
referring to evidence.
Explain why this practice
makes sense given
the nature of scientific
knowledge.

Asubstance is held in an open container. its particles move past one another at random speeds but do not leave the container. heat is removed from the system, and the particles slow down. when enough heat is removed, the particles no longer have enough speed to overcome the weak attractive forces between them. when this happens, the substance enters its solid state. the process described above is known as .