Ph Scale

What does the pH scale measure?

• Temperature

• Acidity or alkalinity

• Density

• Volume

What is the pH range of acidic substances on the pH scale?

• 0 to 7

• 7 to 14

• 1 to 14

• 0 to 14

Which of the following is considered a neutral pH level?

• 0

• 7

• 14

• 10

If a substance has a pH of 9, is it acidic, alkaline, or neutral?

• Acidic

• Alkaline

• Neutral

• It depends on the substance

Lemon juice has a pH of about 2. What can you conclude about its acidity?

• It is acidic.

• It is alkaline.

• It is neutral.

• It is not possible to determine.

What pH level is considered highly acidic on the pH scale?

• 1

• 7

• 14

• 9

Why is it important to measure the pH of soil in agriculture?

• To determine the color of the soil

• To check for the presence of rocks

• To assess the acidity or alkalinity of the soil

• To calculate the soil's weight

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

In swimming pools, maintaining the proper pH level is crucial. What pH range is typically recommended for pool water?

• 0 to 7

• 7 to 14

• 1 to 14

• 7.2 to 7.8

What is the pH of pure water?

• 0

• 7

• 14

• 10

In the human body, where is a slightly acidic environment necessary for digestion?

• Stomach

• Liver

• Lungs

• Brain