Classification of Matter and Properties

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

(a)  

• Air
• Saltwater
• Gold
• Milk

What is the physical state of matter that has a definite shape and volume?

(a)  

• Solid
• Liquid
• Gas
• Plasma

Tags

NGSS.MS-PS1-4

Which of the following is a chemical change?

(a)  

• Melting ice
• Boiling water
• Burning wood
• Mixing salt and water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the smallest unit of an element that retains its chemical properties?

(a)  

• Atom
• Molecule
• Compound
• Ion

Tags

NGSS.MS-PS1-1

Which of the following is an example of a heterogeneous mixture?

(a)  

• Saltwater
• Air
• Milk
• Trail mix

Which of the following is a physical property of matter?

• Flammability

• Density

• Reactivity

• Toxicity

Tags

NGSS.5-PS1-3

What is the formula for density?

• Mass / Volume

• Volume / Mass

• Mass x Volume

• Volume - Mass

Which of the following is an example of a compound?

• Oxygen

• Gold

• Water

• Helium

Tags

NGSS.MS-PS1-1

What is the physical state of matter that has a definite volume but takes the shape of its container?

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS1-4

Which of the following is a characteristic of a gas?

• Definite shape

• Definite volume

• Particles close together

• Particles move freely

Tags

NGSS.MS-PS1-4