Elements, Compounds, Mixtures/ Acids & Bases

Something that takes up space and has mass.

• volume
• matter
• mass
• density

Tags

NGSS.5-PS1-1

NGSS.5-PS1-3

a measurement of acids and bases

• Acid
• Base
• pH Scale
• All choices are correct

An acid has a pH value that is

• lower than 7
• equal to 7
• higher than 7
• none of the above

The property of acids described as
the “wearing away” process is called

• erosion
• boiling point
• corrosion
• polar

Which of the following is NOT a pure
substance?

• distilled water
• oxygen
• air
• carbon dioxide

Which method of separating mixtures
would you use to separate salt from a
saltwater solution?

• magnetic attraction
• filtration
• distillation
• evaporation

Which method of separating
mixtures would you use to isolate iron
filings in a mixture of sand, salt, and
iron filings?

• magnetic attraction
• filtration
• distillation
• evaporation

Pure substances can be easily separated.

• True
• False

A pure substance...

• is an element or a compound
• is an element or a mixture
• is a compound or a mixture
• is a mixture

Tags

NGSS.MS-PS1-1

1 A substance made up of two or more chemically combinedelements is —

• an element
• mixture
• compound
• solution

Tags

NGSS.MS-PS1-1