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