EMCE Lesson 10 pH Scale Daily Grade

What would you call a substance that is 7 on the pH scale?

• acid

• base

• neutral

• solute

Which one of the following is not an example of an acid?

• tomatoes

• black coffee

• baking soda

• grapefruit

Since some acids seemingly "eat away" certain substances, acids are ____.

• bitter

• slippery

• corrosive

• weak

Abigail is conducting a science experiment in her school. She has a litmus paper and she dips it in a solution that she knows is an acid. What color will the litmus paper turn?

• blue

• black

• green

• red

Toilet Bowl cleaners are:

• strong acids

• weak acids

• strong bases

• weak bases

A substance that is a 1 on the pH scale would be a(n) ____.

• base

• neutral

• acid

• indicator

Which of the following is neutral?

• milk
• eggs
• gummy worms
• pure water

Taste sour

• acids

• bases

• neutral

• pH scale

On the pH scale, which substance is more acidic than tomato juice?

• lemon juice

• salt

• bleach

• baking soda

According to the pH scale, which item is a stronger base than soap?

• baking soda

• ammonia solution

• tomato

• bleach