Physical Science Final Exam Review S25

A characteristic that describes how a substance reacts to form new substances.

• extensive property
• chemical property
• physical property
• pure substance

A transition between states of matter (e.g., melting, freezing, boiling).

• composition change
• physical change
• chemical change
• state change

A material with a uniform composition and consistent properties (element or compound).

• element
• solution
• pure substance
• mixture

The mass per unit volume of a substance (Mass ÷ Volume).

• density
• solubility
• volume
• mass

A combination of two or more substances that retain their individual properties.

• compound
• element
• mixture
• solution

The ability of an object to float in a fluid due to differences in density.

• viscosity
• solubility
• density
• buoyancy

The physical forms in which matter exists: solid, liquid, gas, and plasma.

• mass
• states of matter
• products
• volume

A characteristic of matter that can be observed without changing its chemical composition.

• intensive property
• physical property
• chemical property
• identity property

Anything that has mass and takes up space.

• element
• energy
• mass
• matter

What ancient Greek philosopher first proposed the concept of atoms, and what was the original meaning of the word "atom"?

• Aristotle; means "building block"
• Plato; means "smallest unit"
• Democritus; means "can't be divided"
• Socrates; means "basic element"