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