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