Ch. 2 Test Review

Which of the following is NOT a pure substance?

• milk

• oxygen

• water

Which of the following are pure substances?

• solutions

• compounds

• colloids

Tags

NGSS.MS-PS1-4

If an unknown substance CANNOT be broken down into simpler substances, it is an:

• element

• made of one kind of atom

• both

Water is a compound because

• can be broken down into hydrogen and oxygen

• has a fixed composition (H2o)

• both

Tags

NGSS.MS-PS1-1

Which of the following is a hetergeneous mixture?

• sugar water

• a jar of mixed nuts

• stainless steel

You are about to open a container of orange juice but otice that there are instructions to "shake well before serving." The orange juice is most likely a

• solution

• colliod

• suspension

Which of the following has the highest viscosity?

• corn syrup

• milk

• water

A material that is malleable and conducts electricity is most likely

• wood

• ice

• metal

Which of the following is a physical change?

• sawing a piece of wood in half

• rust forming on an iron fence

• a copper roof changing color from red to green

Which of the following is evidence of chemical change?

• vapor forming as water boils

• balls of wax form when melted wax is poured into ice water

• a gas forms when vinegar and baking soda are mixed

Tags

NGSS.MS-PS1-2