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.⚖️ 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
- 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) a tray for spills (d) a mirror
- 3.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 4.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) it grows bigger (d) there is no change
- 5.⚖️ 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 same bottle
- 6.🔍 Which is the odd one out? (a) salt water (b) detergent water (c) plain water (d) sugar water
- 7.🔍 Which is the odd one out? (a) soap solution (b) orange juice (c) vinegar (d) curd
- 8.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) yes, a new gas forms (d) it is only dissolving
- 9.True or false: soap solution is neutral. (a) False (b) True
- 10.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) sugar (c) a seed (d) a comb
- 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) a battery cell (d) vinegar
- 12.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 13.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a balloon (c) sugar (d) vinegar
- 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) an empty bottle (d) a comb
- 15.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) very little fizzing (d) it turns to honey
- 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a funnel or spoon (d) sugar
- 17.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
- 18.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the balloon got cold (d) the gas froze
- 19.🫧 Which of these is neutral? (a) plain water (b) soap solution (c) curd (d) lemon juice
- 20.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) rub it hard (d) add baking soda
- 21.True or false: detergent water is neutral. (a) False (b) True
- 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
- 23.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
- 24.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
- 25.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 26.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
- 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
- 28.True or false: lemon juice is a base. (a) True (b) False
- 29.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
- 30.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
- 31.True or false: detergent water is a base. (a) False (b) True
- 32.⚖️ 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
- 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a funnel or spoon (c) a tray for spills (d) a balloon
- 34.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) carbon dioxide (d) hydrogen
- 35.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) a funnel or spoon (d) a mirror
- 36.⚖️ 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
- 37.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
- 38.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a seed (d) vinegar
- 39.🫧 Which of these is an acid? (a) detergent water (b) plain water (c) curd (d) baking soda water
- 40.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
Answer key
- we keep it the same
- a mirror
- a base
- it grows bigger
- the same bottle
- detergent water
- soap solution
- yes, a new gas forms
- False
- baking soda
- a battery cell
- an acid
- sugar
- a comb
- very little fizzing
- sugar
- needed
- an ingredient ran out
- plain water
- rinse with clean water
- False
- False
- True
- keep it away from eyes
- an acid
- not needed
- False
- False
- not needed
- False
- True
- True
- a seed
- carbon dioxide
- a funnel or spoon
- True
- False
- vinegar
- curd
- needed
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids