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