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