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