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