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