Spring Review 2025

The temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid and the liquid rapidly changes to a gas throughout is called the ________.

• Boiling Point

• Melting Point

• Freezing Point

• Sublimation Point

Fill in the blank: An ______ is the smallest unit of an element that retains the chemical identity of that element. It's the fundamental building block of matter.

• Atom

• Molecule

• Cell

• Proton

Fill in the blank: A region around the nucleus of an atom where electrons are likely to be found is called an ________.

• Energy Level

• Proton Zone

• Neutron Cloud

• Atomic Core

Fill in the blank: The change of a substance from a gas to a liquid is called ________.

• Condensation

• Evaporation

• Sublimation

• Melting

Fill in the blank: A ______ property is a characteristic of a substance that describes its ability to undergo a specific chemical change. (e.g., flammability, reactivity with acid).

• Chemical

• Physical

• Mechanical

• Thermal

What type of change involves substances being transformed into new substances with different chemical compositions and properties?

• Chemical Change

• Physical Change

• Phase Change

• Mixture Formation

What is the force that acts on the surface of a liquid and tends to minimize the surface area called?

• Surface Tension

• Viscosity

• Buoyancy

• Adhesion

Fill in the blank: A ______ is a particle made up of two or more atoms held together by chemical bonds. These atoms can be of the same element (e.g., O2) or different elements (e.g., H2O).

• Molecule

• Ion

• Proton

• Electron

Fill in the blank: The gradual change of a liquid to a gas at the surface of the liquid, occurring at temperatures below the boiling point, is called ________.

• Evaporation

• Condensation

• Sublimation

• Freezing

In the context of matter, what principle states that matter cannot be created or destroyed in a physical or chemical change?

• Conservation (of mass)

• Law of Acceleration

• Theory of Relativity

• Principle of Buoyancy