WorksheetsPC - Chapter 1 Review
Total questions: 15
Worksheet time: 8mins
A scientist has a container with a substance inside. At first, the molecules in the substance move in place. Later, the molecules move around each other. What change did the scientist observe in the substance?
Before, the substance was a liquid. Later, it was a solid.
Before, the substance was a liquid. Later, it was a gas.
Before, the substance was a solid. Later it was a liquid
Before, the substance was a gas. Later, it was a liquid.
Which phase change is represented by arrow D?
Condensing
Evaporating
Freezing
Melting
Which phase change is represented by arrow C?
Condensing
Evaporating
Freezing
Melting
Which phase change is represented by arrow B?
Condensing
Evaporating
Freezing
Melting
Which phase change is represented by arrow A?
Condensing
Evaporating
Freezing
Melting
What happens to the molecules of a substance when it changes phase?
Molecules remain in the same position and state of matter.
Molecules will disappear and no longer exist in a phase change.
Molecules change into a new kind of substance during this phase change.
Molecules move differently when a substance changes phase.
Which of the following describes the freedom of movement of liquids?
The molecules move freely away from each other.
The molecules are tightly packed and can only move in place.
The molecules move around and flow from one location to another. The molecules can still stick together.
They do not move
Which image best represents the freedom of movement of a solid?
A
B
C
None
In which phase do water molecules move freely away from each other and are not positioned near each other?
Gas
Liquid
Solid
None
A group of atoms joined together in a particular way.
Molecules
Phase
Atoms
The relative size of things.
Scale
Phase
Molecule
A phase of matter that holds its shape and does not take the shape of the container.
Liquid
Solid
Gas
None
A different form or state of matter of the same substance.
Scale
Matter
Phase
A phase of matter that flows and takes the shape of the container.
Gas
Liquid
Solid
None
A phase of matter that has no visible shape and fills its container.
Gas
Liquid
Solid
None
