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