pure substance and mixture

salt water can be seperated into salt and water

• true

• false

a mixture of soil has the same chemical composition

• true

• false

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

salt water is heterogenous

• true

• false

they are the samllest unit of an element that keep the properties of element

• matters

• atoms

• molecules

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

• element

• compound

• mixture

componds have same properties from elements that make them up

• true

• false

Tags

NGSS.MS-PS1-2

pure substance are element and compond

• true

• false

is a substance that has definite physical and chemical such as melting point

• mixture

• pure substance

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

water always freezes at ...........,boils at .....................

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

elements are ...............,.....................,...................