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