Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a solution is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is an acid?

Back

An acid is a substance that donates hydrogen ions (H+) when dissolved in water.

Tags

NGSS.MS-PS1-1

Front

What is a base?

Back

A base is a substance that accepts hydrogen ions (H+) or releases hydroxide ions (OH-) in water.

Front

What is the pH of pure water?

Back

The pH of pure water is 7, which is considered neutral.

Front

What happens to the pH when an acid is added to water?

Back

The pH decreases, making the solution more acidic.

Front

What happens to the pH when a base is added to water?

Back

The pH increases, making the solution more basic.

Front

What is a characteristic of acids?

Back

Acids typically taste sour and can be corrosive.

Front

What is a characteristic of bases?

Back

Bases typically taste bitter and feel slippery.

Front

What is the pH of blood?

Back

The pH of blood is approximately 7.4.

Front

How many times more acidic is a pH of 8 compared to a pH of 11?

Back

A pH of 8 is 1000 times more acidic than a pH of 11.