Science Test – chapter 2

Conservation of matter

• A mixture in which the different parts can be seen

• A characteristic that can be observed without changing the substance

• The maximum amount of solute that can dissolve in a solvent

• Matter cannot be created or destroyed in a chemical reaction

Law

• The process of a solid becoming a liquid

• A statement that describes something that always happens in nature

• Separating a mixture by passing it through a filter

• Matter cannot be created or destroyed in a chemical reaction

Physical change

• A change that does not form a new substance

• The process of a substance spreading evenly throughout another

• The process of a liquid becoming a solid

• A homogeneous mixture of a solute and solvent

Melting

• A change that does not form a new substance

• The process of a solid becoming a liquid

• A homogeneous mixture of a solute and solvent

• The process of a liquid becoming a solid

Melting point

• A mixture of small particles or droplets dispersed in air

• The process of a liquid becoming a solid

• The temperature at which a solid becomes a liquid

• Matter that has the same composition throughout

Freezing

• The process of a liquid becoming a gas

• The process of a liquid becoming a solid

• The temperature at which a solid becomes a liquid

• The substance that gets dissolved in a solution

Solidifying

• Matter cannot be created or destroyed in a chemical reaction

• Another word for freezing, when a liquid becomes a solid

• A solution that cannot dissolve any more solute

• A mixture that looks the same throughout

Freezing point

• Matter that has the same composition throughout

• A homogeneous mixture of a solute and solvent

• The process of a liquid becoming a gas

• The temperature at which a liquid becomes a solid

Vaporization

• Matter that has the same composition throughout

• A mixture of small particles or droplets dispersed in air

• The process of a liquid becoming a gas

• The process of a liquid becoming a solid

Boiling point

• A statement that describes something that always happens in nature

• The temperature at which a liquid becomes a solid

• The temperature at which a liquid boils

• When particles in a mixture sink to the bottom over time