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.🔮 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
- 2.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a magnet (c) a balloon (d) baking soda
- 3.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) baking soda (c) vinegar (d) a tray for spills
- 4.🫧 Which of these is neutral? (a) salt water (b) soap solution (c) vinegar (d) baking soda water
- 5.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
- 6.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) tamarind water (d) detergent water
- 7.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) spoons of baking soda (c) the kind of balloon (d) the same bottle
- 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we change it (c) we keep it the same
- 10.🫧 Which of these is a base? (a) plain water (b) vinegar (c) curd (d) detergent water
- 11.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) vinegar (c) baking soda (d) a comb
- 12.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 13.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired
- 14.True or false: sugar water is a base. (a) True (b) False
- 15.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they float apart (c) they react (d) they freeze
- 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) an empty bottle (d) a battery cell
- 17.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
- 18.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
- 19.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) very little fizzing (c) it turns to honey (d) the balloon bursts
- 20.🛟 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
- 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) True (b) False
- 22.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
- 23.True or false: plain water is an acid. (a) False (b) True
- 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda
- 25.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only dissolving (c) yes, a new gas forms (d) it is only melting
- 26.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 27.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a mirror (c) a seed (d) an empty bottle
- 28.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 29.🔍 Which is the odd one out? (a) baking soda water (b) plain water (c) detergent water (d) soap solution
- 30.True or false: salt water is neutral. (a) False (b) True
- 31.🫧 Which of these is an acid? (a) salt water (b) vinegar (c) plain water (d) detergent water
- 32.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a battery cell (c) sugar (d) a magnet
- 33.True or false: salt water is a base. (a) False (b) True
- 34.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a balloon (c) a comb (d) a mirror
- 35.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
- 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) an empty bottle (c) baking soda (d) a balloon
- 37.⚖️ 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) the same bottle (d) the amount of vinegar
- 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) sugar (c) a funnel or spoon (d) vinegar
- 39.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
- 40.🔍 Which is the odd one out? (a) vinegar (b) curd (c) tamarind water (d) baking soda water
Answer key
- it grows bigger
- a magnet
- a battery cell
- salt water
- False
- tamarind water
- a base
- spoons of baking soda
- we keep it the same
- detergent water
- a comb
- an acid
- an ingredient ran out
- False
- they react
- a battery cell
- True
- False
- very little fizzing
- rinse with clean water
- False
- needed
- False
- the kind of balloon
- yes, a new gas forms
- a base
- an empty bottle
- an acid
- plain water
- True
- vinegar
- a tray for spills
- False
- a balloon
- not needed
- a comb
- size of the balloon
- sugar
- True
- baking soda water
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