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