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