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.True or false: detergent water is neutral. (a) True (b) False
- 2.🛟 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
- 3.🫧 Which of these is an acid? (a) detergent water (b) lemon juice (c) plain water (d) soap solution
- 4.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) oxygen (d) carbon dioxide
- 5.True or false: sugar water is neutral. (a) False (b) True
- 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) spoons of baking soda (c) the same bottle (d) the amount of vinegar
- 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a balloon (c) a tray for spills (d) a comb
- 8.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 9.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
- 10.⚖️ 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
- 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) baking soda (c) a balloon (d) a funnel or spoon
- 12.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
- 13.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
- 14.🔍 Which is the odd one out? (a) curd (b) lemon juice (c) detergent water (d) tamarind water
- 15.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 16.True or false: baking soda water is a base. (a) True (b) False
- 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda (d) the same bottle
- 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
- 19.🫧 Which of these is a base? (a) vinegar (b) baking soda water (c) plain water (d) curd
- 20.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) a battery cell (d) a funnel or spoon
- 21.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
- 22.🔍 Which is the odd one out? (a) soap solution (b) vinegar (c) lemon juice (d) tamarind water
- 23.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
- 24.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) a mirror (d) an empty bottle
- 25.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
- 26.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) rub it hard (d) ignore it
- 27.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a mirror (c) a battery cell (d) a comb
- 28.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) it turns to honey (d) very little fizzing
- 29.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) vinegar (c) a magnet (d) a balloon
- 30.True or false: tamarind water is an acid. (a) False (b) True
- 31.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 32.🔮 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
- 33.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) a balloon (d) a seed
- 34.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 35.🫧 Which of these is neutral? (a) sugar water (b) soap solution (c) tamarind water (d) orange juice
- 36.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a tray for spills (c) vinegar (d) sugar
- 37.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) it is only dissolving (d) yes, a new gas forms
- 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) baking soda (c) vinegar (d) a balloon
- 39.🫧 Which of these is a base? (a) curd (b) soap solution (c) salt water (d) plain water
- 40.True or false: orange juice is a base. (a) True (b) False
Answer key
- False
- keep it away from eyes
- lemon juice
- carbon dioxide
- True
- spoons of baking soda
- a comb
- not needed
- needed
- we change it
- a battery cell
- True
- False
- detergent water
- not needed
- True
- size of the balloon
- True
- baking soda water
- a battery cell
- needed
- soap solution
- False
- an empty bottle
- not needed
- rinse with clean water
- vinegar
- very little fizzing
- a magnet
- True
- an acid
- it grows bigger
- a balloon
- a base
- sugar water
- sugar
- yes, a new gas forms
- sugar
- soap solution
- False
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