Describing and Classifying Matter

A __________________ is a single type of matter that is pure, meaning it always has a specific makeup or composition

• matter

• pure substance

• mixture

• compound

Tags

NGSS.MS-PS1-4

Sarah is brewing a pot of her favorite decaf coffee: toffee flavored! She grabs a mug and a coffee filter. She pours coffee grounds onto the coffee filter, and then pours hot water over the grounds, and the coffee starts to drip!. What type of separation method is Sarah using so that she doesn't get coffee grounds in her drink?

• distillation

• evaporation

• magnetic attraction

• filtration

A molecule is a group of two or more atoms held together by chemical bonds. A molecule can be:

• One type of element (ex: H₂ or O₂)

• More than one type of element (ex: CO₂)

• None of the above

Tags

NGSS.MS-PS1-1

A compound is a substance made of two or more elements. A compound can be:

• One type of element (ex: H₂ or O₂)

• More than one type of element (ex: CO₂)

• neither

Tags

NGSS.MS-PS1-1

In science, matter is:

• two substances mixed together

• anything that has mass and takes up space

• something you care about a lot

• a type of element

In a heterogeneous mixture, you can:

• easily separate the individual parts

• not easily separate the individual parts: it's difficult

• drink it

• only call it a molecule

In a homogeneous mixture, you can:

• easily separate the individual parts

• not easily separate the individual parts: it's difficult

• drink it

• only call it a molecule

Is a bowl of candy a mixture, element, or compound?

• Mixture

• Element

• Compound

Is water, H₂O, a mixture, element, or compound?

• mixture

• element

• compound

Tags

NGSS.MS-PS1-1

Is Chlorine, Cl, a mixture, element, or compound?

• mixture

• element

• compound

Tags

NGSS.MS-PS1-1