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.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
- 2.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) tamarind water
- 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) spoons of baking soda (c) size of the balloon
- 4.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) oxygen (c) hydrogen (d) carbon dioxide
- 5.🫧 Is salt water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 6.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
- 7.🫧 Which of these is a base? (a) curd (b) detergent water (c) salt water (d) tamarind water
- 8.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
- 9.🫧 Which of these is an acid? (a) baking soda water (b) detergent water (c) vinegar (d) sugar water
- 10.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) size of the balloon (c) the same bottle (d) spoons of baking soda
- 12.⚖️ 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) False (b) True
- 13.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
- 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
- 15.🫧 Which of these is an acid? (a) curd (b) baking soda water (c) salt water (d) sugar water
- 16.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
- 17.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
- 18.🔍 Which is the odd one out? (a) baking soda water (b) sugar water (c) soap solution (d) detergent water
- 19.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
- 20.True or false: lemon juice is neutral. (a) False (b) True
- 21.⚖️ 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
- 22.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 23.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
- 24.⚖️ 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
- 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda
- 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) size of the balloon (c) the amount of vinegar (d) spoons of baking soda
- 27.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
- 28.True or false: soap solution is a base. (a) True (b) False
- 29.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
- 30.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
- 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a balloon (c) a comb (d) a funnel or spoon
- 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a magnet (d) baking soda
- 33.🫧 Which of these is neutral? (a) lemon juice (b) curd (c) soap solution (d) salt water
- 34.🔍 Which is the odd one out? (a) baking soda water (b) lemon juice (c) curd (d) tamarind water
- 35.⚖️ 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) True (b) False
- 36.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) vinegar (d) salt water
- 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a tray for spills (c) a funnel or spoon (d) vinegar
- 38.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
- 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
- 40.True or false: curd is a base. (a) True (b) False
Answer key
- needed
- tamarind water
- the kind of balloon
- carbon dioxide
- neutral
- keep it away from eyes
- detergent water
- not needed
- vinegar
- an acid
- size of the balloon
- False
- False
- False
- curd
- needed
- not needed
- sugar water
- it grows bigger
- False
- we change it
- a base
- False
- we keep it the same
- the amount of vinegar
- spoons of baking soda
- needed
- True
- False
- needed
- a comb
- a magnet
- salt water
- baking soda water
- True
- vinegar
- a mirror
- True
- False
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids