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.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 2.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 3.🧺 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) sugar
- 4.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
- 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
- 6.🫧 Which of these is a base? (a) plain water (b) lemon juice (c) curd (d) soap solution
- 7.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
- 8.True or false: lemon juice is neutral. (a) False (b) True
- 9.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a funnel or spoon (c) baking soda (d) sugar
- 10.🫧 Which of these is an acid? (a) detergent water (b) sugar water (c) lemon juice (d) salt water
- 11.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) it glows in the dark (d) lots of fizzy bubbles
- 12.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
- 13.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
- 14.🔍 Which is the odd one out? (a) detergent water (b) vinegar (c) curd (d) lemon juice
- 15.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 16.🫧 Which of these is an acid? (a) curd (b) baking soda water (c) detergent water (d) plain water
- 17.⚖️ 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) the kind of balloon
- 18.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) ignore it (d) add baking soda
- 19.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
- 20.⚖️ 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 amount of vinegar (c) spoons of baking soda (d) size of the balloon
- 21.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 22.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) vinegar (c) a battery cell (d) sugar
- 23.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) lemon juice (d) soap solution
- 24.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) hydrogen (c) oxygen (d) helium
- 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.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) it shrinks (d) there is no change
- 27.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
- 28.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
- 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
- 30.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 31.🔍 Which is the odd one out? (a) vinegar (b) soap solution (c) curd (d) tamarind water
- 32.🔍 Which is the odd one out? (a) baking soda water (b) plain water (c) detergent water (d) soap solution
- 33.🫧 Which of these is an acid? (a) detergent water (b) baking soda water (c) sugar water (d) vinegar
- 34.🔍 Which is the odd one out? (a) vinegar (b) sugar water (c) plain water (d) salt water
- 35.⚖️ 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 change it (c) we measure it
- 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a balloon (d) a battery cell
- 37.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a magnet (c) vinegar (d) a balloon
- 38.🫧 Which of these is neutral? (a) soap solution (b) orange juice (c) baking soda water (d) salt water
- 39.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the balloon got cold (d) the gas froze
- 40.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
Answer key
- not needed
- neutral
- sugar
- True
- False
- soap solution
- False
- False
- sugar
- lemon juice
- lots of fizzy bubbles
- False
- keep it away from eyes
- detergent water
- an acid
- curd
- size of the balloon
- rinse with clean water
- needed
- spoons of baking soda
- an acid
- vinegar
- lemon juice
- carbon dioxide
- False
- it grows bigger
- False
- needed
- False
- a base
- soap solution
- plain water
- vinegar
- vinegar
- we keep it the same
- a battery cell
- a magnet
- salt water
- an ingredient ran out
- True
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids