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: plain water is neutral. (a) False (b) True
- 2.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) carbon dioxide (d) oxygen
- 3.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
- 4.True or false: soap solution is neutral. (a) True (b) False
- 5.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a balloon (c) a battery cell (d) a comb
- 6.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
- 7.True or false: tamarind water is a base. (a) True (b) False
- 8.🔍 Which is the odd one out? (a) curd (b) baking soda water (c) tamarind water (d) lemon juice
- 9.🔍 Which is the odd one out? (a) curd (b) salt water (c) lemon juice (d) tamarind water
- 10.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rinse with clean water (d) rub it hard
- 11.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) vinegar (c) a balloon (d) a funnel or spoon
- 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar (d) the kind of balloon
- 13.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
- 14.📘 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
- 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we keep it the same (c) we measure it
- 16.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) baking soda (c) sugar (d) a mirror
- 17.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
- 18.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) soap solution
- 19.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
- 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we change it (c) we measure it
- 21.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
- 22.True or false: tamarind water is neutral. (a) True (b) False
- 23.⚖️ 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
- 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
- 25.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we measure it (c) we change it
- 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) an empty bottle (d) a battery cell
- 28.🔍 Which is the odd one out? (a) vinegar (b) plain water (c) sugar water (d) salt water
- 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we change it (c) we measure it
- 30.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
- 31.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) baking soda (c) a mirror (d) a tray for spills
- 32.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a balloon (c) an empty bottle (d) sugar
- 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) baking soda (c) vinegar (d) a tray for spills
- 34.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
- 35.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
- 36.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
- 37.🔮 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
- 38.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) plain water
- 39.⚖️ 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) False (b) True
- 40.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a magnet (c) an empty bottle (d) a tray for spills
Answer key
- True
- carbon dioxide
- needed
- False
- a balloon
- needed
- False
- baking soda water
- salt water
- rinse with clean water
- a battery cell
- size of the balloon
- False
- yes, a new gas forms
- we keep it the same
- baking soda
- needed
- soap solution
- False
- we keep it the same
- True
- False
- False
- True
- an acid
- we measure it
- a battery cell
- vinegar
- we change it
- needed
- a mirror
- sugar
- a seed
- not needed
- keep it away from eyes
- not needed
- an ingredient ran out
- plain water
- False
- a magnet
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids