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