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 a base? (a) baking soda water (b) sugar water (c) orange juice (d) salt water
- 2.True or false: orange juice is neutral. (a) True (b) False
- 3.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) no, nothing changes (c) it is only melting (d) yes, a new gas forms
- 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) False (b) True
- 5.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) helium (c) hydrogen (d) oxygen
- 6.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) vinegar (d) plain water
- 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the same bottle (c) spoons of baking soda (d) the kind of balloon
- 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) the amount of vinegar (c) the same bottle (d) size of the balloon
- 9.🔍 Which is the odd one out? (a) sugar water (b) orange juice (c) vinegar (d) lemon juice
- 10.True or false: curd is an acid. (a) True (b) False
- 11.🔍 Which is the odd one out? (a) tamarind water (b) soap solution (c) detergent water (d) baking soda water
- 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a comb (d) baking soda
- 13.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
- 14.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they float apart (c) they become magnets (d) they freeze
- 15.⚖️ 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
- 16.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
- 17.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 18.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
- 19.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) gas is made inside (d) outside air gets in
- 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) a tray for spills (d) a magnet
- 21.🔍 Which is the odd one out? (a) sugar water (b) curd (c) plain water (d) salt water
- 22.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
- 23.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) it grows bigger (d) there is no change
- 24.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
- 25.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 26.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
- 27.⚖️ 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
- 28.True or false: a tray for spills is needed for the fizzy balloon. (a) True (b) False
- 29.True or false: orange juice is an acid. (a) True (b) False
- 30.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
- 31.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 32.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) an ingredient ran out (d) the bottle got tired
- 33.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a comb (c) a magnet (d) baking soda
- 34.🫧 Which of these is neutral? (a) orange juice (b) plain water (c) curd (d) baking soda water
- 35.⚖️ 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 measure it (c) we keep it the same
- 36.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) a battery cell (c) a magnet (d) a mirror
- 37.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) sugar (c) a funnel or spoon (d) baking soda
- 38.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
- 40.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
Answer key
- baking soda water
- False
- yes, a new gas forms
- False
- carbon dioxide
- vinegar
- spoons of baking soda
- size of the balloon
- sugar water
- True
- tamarind water
- a comb
- False
- they react
- we keep it the same
- not needed
- an acid
- False
- gas is made inside
- a magnet
- curd
- True
- it grows bigger
- True
- neutral
- True
- True
- True
- True
- False
- neutral
- an ingredient ran out
- baking soda
- plain water
- we measure it
- a balloon
- sugar
- an acid
- the amount of vinegar
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids