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