Question

What happens to the particles in a substance when it changes from a solid to a liquid state? (2 points)
Responses

Particles become more tightly packed together
Particles become more tightly packed together

Particles begin to move more freely and slide past each other
Particles begin to move more freely and slide past each other

Particles become completely still and stop moving
Particles become completely still and stop moving

Particles break apart completely and disappear

Answer 1

Particles begin to move more freely and slide past each other.

Explanation: During melting, particles gain energy, vibrate more, overcome some of their fixed positions, and can move past one another while remaining close together.