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