Baking Soda and Vinegar Experiment Worksheet
What you do (Acid + base → gas): 1. Pour vinegar into the plastic bottle, standing on a tray. 2. Spoon two teaspoons of baking soda into the balloon. 3. Stretch the balloon over the bottle’s mouth, letting it hang to the side. 4. Lift the balloon so the soda drops in, and keep faces back.
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- 1.🫧 Which of these is a base? (a) tamarind water (b) orange juice (c) sugar water (d) detergent water
- 2.🫧 Which of these is neutral? (a) baking soda water (b) vinegar (c) sugar water (d) lemon juice
- 3.True or false: salt water is neutral. (a) False (b) True
- 4.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they react (d) they float apart
- 5.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) rinse with clean water (d) ignore it
- 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) True (b) False
- 7.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
- 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a comb (c) a balloon (d) vinegar
- 9.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
- 10.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 11.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
- 12.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) lemon juice (d) salt water
- 13.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
- 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a battery cell (c) a funnel or spoon (d) a balloon
- 15.🔍 Which is the odd one out? (a) detergent water (b) tamarind water (c) baking soda water (d) soap solution
- 16.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a battery cell (c) vinegar (d) an empty bottle
- 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) baking soda (d) a mirror
- 18.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) seal it in a glass jar (d) keep it away from eyes
- 19.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a balloon (c) a funnel or spoon (d) vinegar
- 21.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 22.🔍 Which is the odd one out? (a) curd (b) plain water (c) tamarind water (d) orange juice
- 23.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 24.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a comb (c) vinegar (d) baking soda
- 25.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) a balloon (d) a seed
- 26.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
- 27.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 28.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) there is no change (d) it grows bigger
- 29.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) a tray for spills (d) a comb
- 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda (d) the same bottle
- 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
- 32.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) no, nothing changes (c) yes, a new gas forms (d) it is only dissolving
- 33.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
- 34.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
- 35.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
- 36.🔍 Which is the odd one out? (a) salt water (b) orange juice (c) lemon juice (d) tamarind water
- 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
- 38.🔍 Which is the odd one out? (a) lemon juice (b) baking soda water (c) tamarind water (d) vinegar
- 39.🫧 Which of these is neutral? (a) salt water (b) lemon juice (c) tamarind water (d) orange juice
- 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True
Answer key
- detergent water
- sugar water
- True
- they react
- rinse with clean water
- False
- False
- a comb
- True
- neutral
- needed
- lemon juice
- True
- a battery cell
- tamarind water
- a battery cell
- a mirror
- keep it away from eyes
- an acid
- sugar
- an acid
- plain water
- not needed
- a comb
- a balloon
- not needed
- an acid
- it grows bigger
- a tray for spills
- size of the balloon
- we measure it
- yes, a new gas forms
- False
- True
- False
- salt water
- True
- baking soda water
- salt water
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids