Acids and Bases

Acids have a _______ taste. 

• sour
• bitter
• sweet
• salty

A high pH indicates that a substance is _____________. 

• strongly acidic
• a weak base
• a strong base
• a weak acid

Water has a pH of _____, meaning that it is neutral.

• 0
• 14
• 1
• 7

Bases turn litmus paper ______________. 

• red
• yellow
• orange
• blue

Acids turn litmus paper ________. 

• blue
• red
• green
• orange

Which of these is the most acidic?

• Blood- 7.4
• Bile- 8.2
• Saliva- 6.8
• Gastric juice- 1.7

Tags

NGSS.MS-PS1-2

Bases are ____________. 

• corrosive
• slippery
• sour
• low on the pH scale

This substance turned red litmus paper blue. It is a ________. 

• acid
• base

The liquid in the dish is most likely _______. 

• acidic
• basic

Tags

NGSS.MS-PS1-2

True or False: Acids can neutralize bases. 

• True
• False