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Sixth Grade (Grade 6) Acids and Bases Questions

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Grade 6 Acids and Bases
You can determine the concentration of acids or bases in a solution by using
  1. the pH scale.
  2. a salt.
  3. the periodic table of elements.
  4. a particle accelerator.
Grade 6 Acids and Bases
An acid-base                 tells us whether we have an acid or a base.
  1. reaction
  2. mixture
  3. indicator
  4. molecule
Grade 6 Acids and Bases
If something contains a hydroxide ion, it most likely is considered to be
  1. an acid.
  2. a base.
  3. neutral.
  4. all of the above
Grade 6 Acids and Bases
A liquid with a pH of 10 is                  .
  1. a base
  2. an acid
  3. neutral
  4. none of the above
Grade 6 Acids and Bases
What can we use to show us that a chemical reaction is taking place?
  1. A speedometer
  2. An indicator
  3. A bowl of water
  4. A telescope
Grade 6 Acids and Bases
Which item is NOT an acid?
  1. mustard
  2. sugar
  3. lemon juice
  4. tomato juice
Grade 6 Acids and Bases
A liquid with a pH of 10 is                  .
  1. a base
  2. an acid
  3. neutral
  4. none of the above
Grade 6 Acids and Bases
What happens when an acid and a base come in contact with each other? Choose as many correct answers as are applicable.
  1. The pH level increases for both the acid and the base.
  2. They create a chemical reaction.
  3. They neutralize each other.
  4. The properties of each substance change.
Grade 6 Acids and Bases
What makes hydrangea flowers turn bluish-purple or pink?
  1. It there are a lot of worms in the soil.
  2. If the plant gets enough water.
  3. If the soil is acidic or basic.
  4. If the gardener added way too much fertilizer.
Grade 6 Acids and Bases
A chemical such as BTB that changes color in the presence of which of the following?
  1. indicator
  2. variable
  3. viable
  4. organism
Grade 6 Acids and Bases
Bases can often feel                .
  1. fuzzy
  2. rough
  3. moldy
  4. slippery
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