Pure Substances and Mixtures

___________ are the smallest unit of an element that maintains the properties of that element.

• Atoms

• Elements

• Compounds

• Mixtures

Tags

NGSS.MS-PS1-1

An _______________ is made up of one or more of the same kind of atom chemically combined.

• atom

• element

• molecule

• compound

Tags

NGSS.MS-PS1-1

A ______________ is made up of different kinds of atoms chemically combined.

• element

• compound

• mixture

• molecule

Tags

NGSS.MS-PS1-1

A _____________ contains a variety of elements and compounds that are not chemically combined with each other.

• compound

• element

• molecule

• mixture

True or False: elements AND compounds are pure substances.

• True

• False

Which of these is an element?

• Salt (NaCl)

• Water (H20)

• Oxygen (O)

• Carbon Dioxide (CO2)

Which of these is a compound?

• Aluminium (Al)

• Carbon Dioxide (CO2)

• Nitrogen (N)

• Sand

Tags

NGSS.MS-PS1-1

Jorge prepared a drink and salad for dinner. The chart lists the ingredients for both.
Using the information in the chart, which statement is the BEST description of the drink and salad?

• The salad and fruit drink are both mixtures.
• The salad and the fruit drink are both solutions.
• The fruit drink is a mixture because the ingredients can't be separated.
• The salad is a solution because the ingredients can't be separated.

The picture shown here is what type of mixture?

• homogeneous
• hetergeneous
• pure substance
• element

What is this?

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous MIxture

Tags

NGSS.MS-PS1-1