24-25_S8P1 Unit 1 Matter Test

Which of the following is an example of a pure substance?

• Saltwater
• Iron
• Salad
• Soil

Tags

NGSS.MS-PS1-4

What best describes a compound?

• Contains only one type of atom
• Made of two or more elements chemically combined
• A heterogeneous mixture
• Easily separated by filtration

Which option describes a mixture?

• Always has a uniform composition
• Contains only metals
• Can be physically separated
• Is always chemically combined

Which of these is a homogeneous mixture?

• Trail mix
• Pizza
• Milk
• Water

Which of the following is a heterogeneous mixture?

• Air
• Sugar water
• Orange juice with pulp
• Vinegar

In a mixture, each substance:

• Loses its chemical properties
• Gains new properties
• Maintains its original properties
• Becomes a pure substance

An element:

• Can be broken down into simpler substances
• Is a type of homogeneous mixture
• Has only one type of atom
• Contains at least two different atoms

Which of these is a compound?

• Oxygen
• Salt
• Iron
• Air

Which process separates components of a homogeneous mixture, like salt water?

• Filtration
• Combustion

• Melting
• Evaporation/Vaporization

Elements and compounds are both:

• Pure substances
• Mixtures
• Solutions
• Suspensions