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.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True
- 2.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
- 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we keep it the same (c) we measure it
- 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the amount of vinegar (d) the kind of balloon
- 5.True or false: orange juice is an acid. (a) False (b) True
- 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a comb (c) a balloon (d) a tray for spills
- 7.True or false: detergent water is a base. (a) True (b) False
- 8.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
- 9.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
- 10.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 11.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) rub it hard (d) ignore it
- 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the amount of vinegar
- 13.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 14.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
- 15.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) soap solution
- 16.⚖️ 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) size of the balloon (d) the kind of balloon
- 17.🔍 Which is the odd one out? (a) curd (b) vinegar (c) tamarind water (d) plain water
- 18.📘 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
- 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the kind of balloon
- 20.🫧 Which of these is an acid? (a) orange juice (b) sugar water (c) soap solution (d) plain water
- 21.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the bottle got tired (d) the gas froze
- 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
- 23.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
- 24.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 25.🔍 Which is the odd one out? (a) tamarind water (b) lemon juice (c) vinegar (d) detergent water
- 26.True or false: lemon juice is a base. (a) False (b) True
- 27.True or false: lemon juice is an acid. (a) False (b) True
- 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
- 29.True or false: curd is a base. (a) True (b) False
- 30.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) baking soda (c) vinegar (d) an empty bottle
- 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) a funnel or spoon (d) sugar
- 33.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) detergent water (d) tamarind water
- 34.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 35.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
- 36.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) lots of fizzy bubbles (d) nothing at all
- 37.True or false: plain water is a base. (a) False (b) True
- 38.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) vinegar (c) sugar (d) a balloon
- 39.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
- 40.🫧 Which of these is neutral? (a) baking soda water (b) plain water (c) vinegar (d) tamarind water
Answer key
- False
- needed
- we measure it
- size of the balloon
- True
- a comb
- True
- needed
- gas is made inside
- neutral
- rinse with clean water
- the amount of vinegar
- an acid
- False
- soap solution
- spoons of baking soda
- plain water
- they react
- the kind of balloon
- orange juice
- an ingredient ran out
- False
- not needed
- not needed
- detergent water
- False
- True
- True
- False
- an acid
- a seed
- sugar
- tamarind water
- an acid
- a base
- lots of fizzy bubbles
- False
- sugar
- needed
- plain water
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids