Unit 2 Vocabulary Quizs

Objects that allow heat (thermal) energy to move through easily are called:

• Conductors

• Insulators

What is the ability of a substance to burn or ignite, causing fire ?

• chemical stability

• reactivity

• flammability

• conductivity

When a liquid reaches the temperatures of its ___, it can become a gas.

• melting point
• freezing point
• boiling point
• density

These type of observations are described, not measured.

• Qualitative

• Quantitative

It is a mixture wherein it has a single phase or uniform substances.

• A. homogenous mixture

• B. heterogenous mixture

• C. solute

• D. solvent

__ is the amount of matter within a certain volume.

• Density

• Mass

The amount of matter in an object is 

• pressure
• weight
• mass
• force

A physical property, the way the surface of a substance shines or reflects light

• physical property

• conductor

• brittle

• luster

What is electrical conductivity?

• electricity currents

• a measure of how well electricity can move through a material

• a measure of how much electricity there is

• being able to turn lights off anf on

What is the definition of a homogeneous mixture?

• A mixture where the components separate into distinct layers according to density.

• A mixture where the components are distributed unevenly and the composition varies throughout.

• A mixture where the components are distributed uniformly and the composition is the same throughout.

• A mixture where the components are distributed randomly and the composition changes at different points.