PH Level

On the pH scale, what number represents a neutral substance?

 

• 0

• 7

• 14

• 10

If soil has a pH of 5, how many times more acidic is it than soil with a pH of 6?

• 2 times

• 5 times

• 10 times

• 100 times

Which of the following best describes why soil pH is important for plants?

• It determines the color of the plants

• It affects the availability of nutrients for plants

• It controls how tall plants can grow

• It decides how much sunlight plants need

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Most plants prefer soil with a pH range of ...

• 2-3

• 4-5

• 6-7

• 12-14

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

If the substance is neutral, what would the pH be?

• 3

• 5

• 7

• 9

• 11

The strongest bases have pH values close to

• 0

• 14

• 7

• 5

What is the range of pH values in an acidic solution?

• 0-6

• 8-14

• 15-239058204958

• pH = 7

According to the pH range which substance is more acidic than lemon juice

• Hydrochloric acid

• cabbage

• milk

How can human activities affect the pH levels of water bodies?

• By increasing the water's temperature

• By adding pollutants that can make the water more acidic or basic

• By changing the water's color

• By altering the water's flow rate

Tags

NGSS.MS-ESS3-4

Which of the following pH values represents a base?

• 2.1

• 4.6

• 6.8

• 8.1