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) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
- 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
- 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) a comb (d) a balloon
- 4.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) an ingredient ran out (c) the balloon got cold (d) the gas froze
- 5.📘 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
- 6.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) shake it near your face (c) seal it in a glass jar (d) keep it away from eyes
- 7.True or false: orange juice is a base. (a) True (b) False
- 8.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
- 9.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
- 10.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
- 11.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) oxygen (c) hydrogen (d) helium
- 12.🔍 Which is the odd one out? (a) detergent water (b) tamarind water (c) baking soda water (d) soap solution
- 13.🫧 Which of these is an acid? (a) plain water (b) soap solution (c) detergent water (d) tamarind water
- 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) vinegar (c) a balloon (d) a funnel or spoon
- 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a funnel or spoon (c) baking soda (d) vinegar
- 16.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a balloon (c) a magnet (d) baking soda
- 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
- 18.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
- 19.🔍 Which is the odd one out? (a) plain water (b) salt water (c) orange juice (d) sugar water
- 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we change it (c) we measure it
- 21.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
- 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we keep it the same (c) we change it
- 23.🫧 Which of these is a base? (a) lemon juice (b) detergent water (c) orange juice (d) plain water
- 24.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 25.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 26.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
- 27.🫧 Which of these is an acid? (a) soap solution (b) salt water (c) curd (d) detergent water
- 28.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
- 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) vinegar (c) an empty bottle (d) a tray for spills
- 30.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a tray for spills (c) a battery cell (d) a mirror
- 31.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
- 32.🫧 Which of these is neutral? (a) soap solution (b) tamarind water (c) baking soda water (d) plain water
- 33.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a balloon (d) sugar
- 34.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
- 35.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
- 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) a balloon (d) a seed
- 37.True or false: lemon juice is neutral. (a) True (b) False
- 38.🔍 Which is the odd one out? (a) vinegar (b) tamarind water (c) plain water (d) lemon juice
- 39.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) gas is made inside (d) vinegar is hot
- 40.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a mirror (c) a seed (d) a comb
Answer key
- rinse with clean water
- False
- a comb
- an ingredient ran out
- yes, a new gas forms
- keep it away from eyes
- False
- not needed
- it grows bigger
- False
- carbon dioxide
- tamarind water
- tamarind water
- a magnet
- a mirror
- a magnet
- False
- False
- orange juice
- we keep it the same
- True
- we measure it
- detergent water
- neutral
- a base
- False
- curd
- needed
- sugar
- a tray for spills
- needed
- plain water
- sugar
- needed
- False
- a seed
- False
- plain water
- gas is made inside
- baking soda
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids