A sour taste is a characteristic of:

• acids

• bases

• neutral

• pH scale

pH is the measure of the concentration of ______.

• Acids

• H+ ion

• OH- ion

• Bases

A substance that is 3 on the pH scale would be a(n):

• acid

• base

• neutral

• solute

Which one of the following is an example of a base?

• orange juice
• dish soap
• vinegar
• lemons

A substance that changes color when mixed with an acid or base is a(n) ___.

• indicator

• neutralizer

• corrosive

• electricity

Tags

NGSS.MS-PS1-2

What color does litmus paper turn in the presence of an acid?

• blue

• black

• green

• red

Tags

NGSS.MS-PS1-2

Bases are located where on the pH scale?

• any number can be a base
• below 7
• above 7
• number 7 is a base

Bleach and oven cleaner are:

• strong acids
• weak acids
• strong bases
• weak bases

A substance that is a 10 on the pH scale would be a(n) ____.

• acid
• neutral
• base
• indicator

At what location on the pH scale can you find acids?

• number 7 on the pH scale is acidic
• below 7
• above 7
• you can find acids all throughout the scale