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 of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) a comb (d) baking soda
- 2.True or false: vinegar is neutral. (a) True (b) False
- 3.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
- 4.🔍 Which is the odd one out? (a) plain water (b) detergent water (c) salt water (d) sugar water
- 5.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a funnel or spoon (c) a magnet (d) a comb
- 6.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) a mirror (d) an empty bottle
- 7.⚖️ 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 change it (c) we keep it the same
- 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) the kind of balloon (d) spoons of baking soda
- 9.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) put it in your mouth (d) shake it near your face
- 10.🫧 Which of these is neutral? (a) plain water (b) orange juice (c) soap solution (d) detergent water
- 11.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a balloon (c) baking soda (d) a magnet
- 12.🧺 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 funnel or spoon
- 13.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) a balloon (d) a comb
- 14.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the balloon got cold (d) the bottle got tired
- 15.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
- 16.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
- 17.⚖️ 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
- 18.⚖️ 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 keep it the same (c) we change it
- 19.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a funnel or spoon (c) a mirror (d) a tray for spills
- 20.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) salt water (d) vinegar
- 21.True or false: a tray for spills is needed for the fizzy balloon. (a) True (b) False
- 22.🔍 Which is the odd one out? (a) salt water (b) tamarind water (c) plain water (d) sugar water
- 23.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
- 24.🫧 Which of these is neutral? (a) lemon juice (b) orange juice (c) tamarind water (d) sugar water
- 25.🔍 Which is the odd one out? (a) vinegar (b) orange juice (c) soap solution (d) tamarind water
- 26.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
- 27.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a tray for spills (c) a comb (d) sugar
- 28.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) baking soda (d) a comb
- 29.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 30.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it shrinks (c) it turns blue (d) it grows bigger
- 31.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) very little fizzing (d) it turns to honey
- 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True
- 33.⚖️ 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 same bottle (c) the amount of vinegar (d) spoons of baking soda
- 34.True or false: soap solution is a base. (a) False (b) True
- 35.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
- 36.True or false: soap solution is neutral. (a) False (b) True
- 37.🔍 Which is the odd one out? (a) curd (b) detergent water (c) baking soda water (d) soap solution
- 38.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a balloon (c) a funnel or spoon (d) a battery cell
- 40.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
Answer key
- baking soda
- False
- neutral
- detergent water
- a funnel or spoon
- an empty bottle
- we measure it
- size of the balloon
- keep it away from eyes
- plain water
- a magnet
- a comb
- a balloon
- an ingredient ran out
- True
- not needed
- False
- we keep it the same
- a mirror
- vinegar
- True
- tamarind water
- False
- sugar water
- soap solution
- False
- a tray for spills
- a comb
- an acid
- it grows bigger
- very little fizzing
- False
- spoons of baking soda
- True
- a base
- False
- curd
- neutral
- a battery cell
- not needed
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids