Mixtures and Properties of Matter

A combination of two or more substances that are not chemically combined is known as a

• mixture

• molecule

• compound

• element

Tags

NGSS.MS-PS1-1

If sugar and Kool-Aid were dissolved in water, would the combination be a compound or a mixture?

• A mixture because the sugar, Kool-Aid and water molecules were not chemically combined and can easily be separated.

• A compound because it was chemically combined and cannot easily be separated.

Tags

NGSS.MS-PS1-2

The ability of a substance to catch on fire and burn is a

• chemical formula.

• state of matter.

• chemical property.

• physical property.

Tags

NGSS.MS-PS1-2

Pizza, soil, and lemonade are all examples of

• compounds.

• atoms.

• mixtures.

• elements.

Tags

NGSS.MS-PS1-1

Different materials placed together, but each material keeps its own properties is a ​ (a)  

• Mixture

• Chemical Change

• Solid

• Mass

• Physical Change

• Solution

• Temperature

• Liquid

• Volume

• Gas

Tags

NGSS.MS-PS1-2

What is a mixture?

• elements chemically combined

• a combination of different things

• it is found on the Periodic Table 

• it is made of chemical

Tags

NGSS.MS-PS1-4

Which of these statements describes a chemical property of an object?

• The object is blue in color.

• The object has a powdery texture.

• The object's density is 5.25 g/cm³.

• The object reacts with acid to form water.

Tags

NGSS.MS-PS1-2

Air and tap water are

• pure substances for which a chemical formula can be written.

• mixtures since they are not chemically combined.

Which of the following are NOT true for mixtures?

• Retains original properties

• Made of compounds, elements, or both

• Not chemically combined

• Parts cannot be easily separated

Ice cubes melting into water is an example of

• chemical change

• physical change

Tags

NGSS.MS-PS1-2