WorksheetsPS Unit 2 General Review
Total questions: 15
Worksheet time: 8mins
Which of the following is a heterogeneous mixture?
Saltwater
Koolaid
Chex mix
Chocolate milk
Which of the following is NOT evidence of a chemical change?
Change in color
Change in shape
Production of a gas
Formation of a precipitate
Which example below is a chemical change?
Crumpling a piece of paper
Fuel being burned in a car's engine
Sawing a piece of wood
Ice melting
Which example below is a physical change?
Burning wood
Ripping a piece of paper up into small pieces
Rust forming on an old bicycle
A banana rotting
Carbon dioxide (CO2) is a substance that is released into the atmosphere when humans and other organisms exhale. This type of matter is known as a(n)
heterogeneous mixture
homogeneous mixture
element
compound
The state of matter with an indefinite shape and definite volume is _____.
Matter
Solid
Liquid
Gas
Rank the states of matter from slowest to fastest particle speed.
Gas, Solid, Plasma, Liquid
Gas, Liquid, Solid, Plasma
Solid, Liquid, Gas, Plasma
Solid, Gas, Liquid, Plasma
Dry ice forming vapor is an example of which process?
Condensation
Sublimation
Deposition
Vaporization
Which process below is exothermic?
Melting
Freezing
Sublimation
Vaporization
When undergoing a phase change, what does not change?
Energy
Time
Heat gain or loss
Temperature
What is happening is section "B" of the graph?
Substance is changing from a liquid to a solid
Substance is liquid
Substance is a solid
Substance is changing from a solid to a liquid
Identify the names of the missing phase changes shown in the figure that are labeled A, B and C.
(A) Freezing, (B) Melting, (C) Condensation
(A) Melting. (B) Freezing, (C) Condensation
(A) Condensation, (B) Freezing, (C) Melting
(A) Condensation, (B) Melting, (C) Freezing
The amount of heat required to convert a liquid to a gas is known as:
heat of fusion
heat of vaporization
boiling
condensation
What is happening in section "C" of the graph?
Substance is changing from a liquid to a solid
Substance is a liquid
Substance is a solid
Substance is changing from a solid to a liquid
Which of the following phase changes is an ENDOTHERMIC change?
condensation
vaporization
deposition
freezing
