Explanation:
Let's go through each item and decide if it is an acid, a base, or neutral.
EASY ROUND
- Hydrochloric Acid: This is a strong acid. It is acidic.
- Acetic Acid: This is the acid in vinegar. It is acidic.
- Sodium Fluoride: This is a salt. When dissolved, it makes the solution slightly basic. It is a base.
- Sodium Bicarbonate: This is baking soda. It is a base.
- Calcium Hydroxide: This is a strong base. It is a base.
- Ascorbic Acid: This is vitamin C. It is acidic.
- Sulphuric Acid: This is a strong acid. It is acidic.
- Ammonia: This is a base. It is a base.
- Magnesium Hydroxide: This is milk of magnesia. It is a base.
INTERMEDIATE ROUND
- Urine: This is usually slightly acidic. It is acidic.
- Salt Water: This is a neutral solution. It is neutral.
- Plaster: This is made from calcium sulfate. It is neutral.
- Aspirin: This is an acid. It is acidic.
- Sour Candies: These contain citric acid or other acids. They are acidic.
- Citrus Fruit: These are rich in citric acid. They are acidic.
- Chalk: This is calcium carbonate. It is a base.
- Shampoo: This is usually slightly basic. It is a base.
- Egg White: This is basic. It is a base.
DIFFICULT ROUND
- Vomit: This contains stomach acid. It is acidic.
- Soda: This is carbonated water with carbonic acid. It is acidic.
- Battery: This contains sulfuric acid. It is acidic.
- Oven Cleaner: This contains lye (a strong base). It is a base.
- Cheese: This is slightly acidic. It is acidic.
- Blueberries: These are acidic. They are acidic.
- Green Tea: This is slightly acidic. It is acidic.
- Almonds: These are slightly basic. They are a base.
- White Bread: This is neutral. It is neutral.
Now, let's list the answers:
EASY ROUND
- Hydrochloric Acid: Acid
- Acetic Acid: Acid
- Sodium Fluoride: Base
- Sodium Bicarbonate: Base
- Calcium Hydroxide: Base
- Ascorbic Acid: Acid
- Sulphuric Acid: Acid
- Ammonia: Base
- Magnesium Hydroxide: Base
INTERMEDIATE ROUND
- Urine: Acid
- Salt Water: Neutral
- Plaster: Neutral
- Aspirin: Acid
- Sour Candies: Acid
- Citrus Fruit: Acid
- Chalk: Base
- Shampoo: Base
- Egg White: Base
DIFFICULT ROUND
- Vomit: Acid
- Soda: Acid
- Battery: Acid
- Oven Cleaner: Base
- Cheese: Acid
- Blueberries: Acid
- Green Tea: Acid
- Almonds: Base
- White Bread: Neutral
Final Answer:
All items are classified as Acid, Base, or Neutral based on their chemical properties. The correct answers are as listed above.
Parent Tip: Review the logic above to help your child master the concept of acid bases worksheet.
