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