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.
NameDateTime takenScore ___ / 40
- 1.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a seed (c) a funnel or spoon (d) baking soda
- 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) an empty bottle (c) baking soda (d) vinegar
- 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a battery cell (d) a balloon
- 4.🔍 Which is the odd one out? (a) tamarind water (b) soap solution (c) curd (d) vinegar
- 5.🔍 Which is the odd one out? (a) plain water (b) detergent water (c) sugar water (d) salt water
- 6.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
- 7.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 8.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
- 9.⚖️ 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 keep it the same (c) we change it
- 10.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired
- 11.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
- 12.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
- 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a funnel or spoon (d) sugar
- 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a magnet (c) vinegar (d) a balloon
- 15.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
- 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) the amount of vinegar (c) size of the balloon (d) spoons of baking soda
- 17.🫧 Which of these is a base? (a) salt water (b) baking soda water (c) lemon juice (d) tamarind water
- 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) baking soda (c) a balloon (d) a funnel or spoon
- 19.🛟 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
- 20.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) a seed (c) a mirror (d) a comb
- 21.🫧 Which of these is an acid? (a) salt water (b) baking soda water (c) vinegar (d) plain water
- 22.🔍 Which is the odd one out? (a) tamarind water (b) vinegar (c) lemon juice (d) sugar water
- 23.⚖️ 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
- 24.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
- 25.🫧 Which of these is neutral? (a) curd (b) orange juice (c) salt water (d) detergent water
- 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
- 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
- 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) the kind of balloon (c) size of the balloon (d) spoons of baking soda
- 29.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 30.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) put it in your mouth (d) keep it away from eyes
- 31.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) salt water (d) curd
- 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
- 33.🔍 Which is the odd one out? (a) tamarind water (b) detergent water (c) soap solution (d) baking soda water
- 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a balloon (c) vinegar (d) a funnel or spoon
- 35.True or false: soap solution is an acid. (a) True (b) False
- 36.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) vinegar (c) a balloon (d) a tray for spills
- 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we measure it (c) we keep it the same
- 38.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a mirror (c) sugar (d) a funnel or spoon
- 39.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a tray for spills (c) vinegar (d) a battery cell
- 40.⚖️ 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 measure it (c) we change it
Answer key
- a seed
- a comb
- a battery cell
- soap solution
- detergent water
- False
- not needed
- False
- we keep it the same
- an ingredient ran out
- not needed
- not needed
- sugar
- a magnet
- True
- size of the balloon
- baking soda water
- a seed
- rinse with clean water
- a balloon
- vinegar
- sugar water
- True
- needed
- salt water
- True
- True
- spoons of baking soda
- an acid
- keep it away from eyes
- curd
- True
- tamarind water
- a mirror
- False
- a comb
- we keep it the same
- a funnel or spoon
- a battery cell
- we change it
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids