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