Semester 1 Assessment Review

What is the direction of heat flow?

• Heat flows from a higher temperature to a lower temperature.
• Heat flows in a random direction regardless of temperature.
• Heat flows horizontally from one object to another.
• Heat flows from a lower temperature to a higher temperature.

The particles in a ______________ are not as tightly packed, and can start to move around from one place to another.

• gas
• liquid
• plasma
• solid

A ______ always has a definite shape and volume.

• liquid
• solid
• plasma
• gas

A ______has a definite volume but no definite shape.

• solid
• gas
• liquid
• plasma

A _______________ does not have a definite volume or shape.

• solid
• liquid
• plasma
• gas

The particles in a ______________ can move around fast and easily in any direction.

• plasma
• gas
• liquid
• solid

The particles in a _____________ vibrate, are tightly packed together, and do not move freely.

• gas
• liquid
• solid
• plasma

A starting substance in a chemical reaction.

• Reactant
• Inhibitor
• Catalyst
• Product

A characteristic of matter that can be observed as it changes to a different type of matter.

• Physical property
• Solid state
• Atomic number
• Chemical property

Law that states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical reaction. Occurs when a substance reacts with another substance, changing it into a new substance.

• Law of Conservation of Mass
• Law of Mass Displacement
• Law of Mass Transformation
• Law of Increasing Mass