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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a battery cell (c) a balloon (d) a funnel or spoon
- 2.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) the balloon got cold (d) an ingredient ran out
- 3.True or false: curd is an acid. (a) True (b) False
- 4.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
- 5.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) a huge eruption (d) it turns to honey
- 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the same bottle (c) the amount of vinegar (d) size of the balloon
- 7.🔍 Which is the odd one out? (a) curd (b) vinegar (c) plain water (d) tamarind water
- 8.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
- 9.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
- 10.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a balloon (c) an empty bottle (d) sugar
- 11.True or false: a magnet is not needed for the fizzy balloon. (a) True (b) False
- 12.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) ignore it (d) add baking soda
- 13.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a magnet (c) baking soda (d) vinegar
- 14.⚖️ 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 kind of balloon (c) spoons of baking soda (d) the amount of vinegar
- 15.🫧 Which of these is a base? (a) salt water (b) sugar water (c) baking soda water (d) orange juice
- 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
- 17.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
- 18.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 19.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a battery cell (c) a magnet (d) a comb
- 20.🫧 Which of these is neutral? (a) baking soda water (b) salt water (c) soap solution (d) vinegar
- 21.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) no, nothing changes (d) yes, a new gas forms
- 22.True or false: orange juice is a base. (a) False (b) True
- 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we change it (c) we keep it the same
- 24.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
- 25.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
- 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a balloon (c) vinegar (d) a mirror
- 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
- 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we keep it the same (c) we change it
- 29.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
- 30.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a magnet (c) a mirror (d) a comb
- 31.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) outside air gets in (d) the bottle shrinks
- 32.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
- 33.🔍 Which is the odd one out? (a) plain water (b) soap solution (c) sugar water (d) salt water
- 34.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
- 35.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) baking soda water
- 36.True or false: sugar water is neutral. (a) True (b) False
- 37.⚖️ 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
- 38.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
- 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
- 40.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) vinegar (c) a mirror (d) an empty bottle
Answer key
- a battery cell
- an ingredient ran out
- True
- False
- very little fizzing
- size of the balloon
- plain water
- not needed
- not needed
- sugar
- True
- rinse with clean water
- a magnet
- spoons of baking soda
- baking soda water
- True
- an acid
- a base
- vinegar
- salt water
- yes, a new gas forms
- False
- we keep it the same
- needed
- True
- a mirror
- False
- we measure it
- True
- baking soda
- gas is made inside
- True
- soap solution
- True
- baking soda water
- True
- we change it
- True
- True
- a mirror
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids