pH levels, water and soil

What does pH measure?

   

• Temperature of a substance

• How acidic or basic a substance is

• The amount of water in soil

• The color of soil

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-LS2-1

NGSS.MS-LS2-4

 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

In the experiment described, what are we trying to find out?

• How fast water moves through soil

• How soil changes the temperature of water

• How contact with different soils changes water pH

• How much water different soils can hold

What is the effect of highly acidic soil on plant growth?

• Plants grow faster

• Plants may become stunted

• Plants produce more flowers

• Plants require less water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Which soil pH level is considered basic?

• 3

• 5

• 7

• 9

Tags

NGSS.MS-PS1-2