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