Matter

A salad is made by mixing lettuce, tomatoes, cucumbers, carrots, and croutons. What type of mixture is this salad?

• suspension

• colloid

• heterogeneous

• homogeneous

What is the defining characteristic of a chemical compound?

• A chemical compound is a mixture of different elements that can be separated by physical means.

• A chemical compound consists of two or more elements chemically bonded together in fixed proportions.

• A chemical compound is a single element with atoms that have different numbers of neutrons.

• A chemical compound is a solution of elements that can be separated by filtration.

Which of the following best describes the nature of vinegar as a solution?

• heterogeneous

• colloid

• homogeneous

• suspension

Carter went for a walk by the Waccamaw River. Carter found the rock shown in the picture below near the river. Carter thinks that the rock is a mixture of solids. What evidence could he use to support this conclusion? (PS.PSc.1.1)

• The rock has uniform shape.
• The rock was near a river.
• The rock has a rough texture.
• The rock contains different colored areas.

Tags

NGSS.MS-PS1-1

Which is an example of a mixture? (PS.PSc.1.1)

• iron filings
• copper wire
• bronze pipe
• titanium plate

Hector was examining samples of four different substances in his Physical Science class. Some of their properties are listed in the table. Based on the information in the table, which of Hector's substances is a colloid? (PS.PSc.1.1)

• Sample 1
• Sample 2
• Sample 3
• Sample 4

Which of the following substances is a pure element?

• steel (Fe + C)

• ammonia (NH3)

• Oxygen (O2)

• glucose (C6H12O6)

Which of the following correctly lists the states of matter from the least particle movement to the most particle movement? (PS.PSc.1.2)

• liquid, solid, gas
• gas, liquid, solid
• solid, liquid, gas
• solid, gas, liquid

Tags

NGSS.MS-PS1-4

When a substance changes from a liquid to a gas, energy is _______. When a substance changes from a gas to a liquid, energy is ______. (PS.PSc.1.2)

• created; destroyed
• absorbed; released
• released; absorbed
• destroyed; created

Tags

NGSS.MS-PS1-4

A student observed a sample of water in three states of matter. The student should describe the liquid water as a state of matter that has ___. (PS.PSc.1.2)

• more kinetic energy than the solid state.
• more mass than the solid state.
• less kinetic energy than the solid state.
• less volume than the solid state.

Tags

NGSS.MS-PS1-4