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