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