Scale

As one moves down the pH scale from 14 to 1, what happens to the concentration of H+ in the solution?

• concentration of H+ decreases

• concentration of H+ increases

• concentration of H+ stays the same

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

• Hydrochloric acid

• cabbage

• milk

A solution with a pH of 8.6 would be...

• Acid

• Base

• Neutral

• Acid and Base

Use the diagram to answer: which rock layer is the newest?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-4

Read this instrument to the nearest tenth

• 613.37 g

• 163.7 g

• 163.5 g

• 163 g

What is the scale of this graph?

• 0

• 800

• 200

• 100

Use the diagram to answer: which fossil is older than the fish fossil?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-4

What is the softest mineral?

• Talc

• Diamond

• Gypsum

• Topaz

What two minerals can a fingernail scratch? (Choose 2)

• Talc

• Gypsum

• Calcite

• Fluorite

Tags

NGSS.MS-PS1-2

Which of these can scratch quartz?

• Steel Nail

• Apatite

• Topaz

• Penny